GMAT Question of the Day : Critical Reasoning

A drug that is highly effective in treating certain types of cancerous growth can, at present, be obtained only from the cartilage of a particular sub-species of shark, a sub-species which is quite rare in the wild.? One must kill 50 sharks to make one pound of the drug.? If follows, therefore, that continued production of the drug must inevitably lead to the extinction of this sub-species of shark.

Which of the following, if true, most seriously weakens the argument above?

A) The drug made from the shark cartilage is dispensed to doctors from a central authority.
B) The drug made from the shark cartilage is expensive to produce.
C) Other organs of the shark can be utilized to produce different drugs.
D) The sub-species of shark will reproduce in captivity under the proper conditions.
E) This sub-species of shark generally lives in largely inaccessible waters.

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  1. Harshvadan says:

    answ. is D

  2. Nik says:

    I think the answer is (E).

    Oh! Those poor sharks! Let the CR hypothesis be untrue.

  3. Leslie says:

    It’s D

  4. KA says:

    I think tht it is D

  5. kavyashree says:

    D

  6. Ram says:

    D, i think…

  7. reetu says:

    D
    The argument says that the continued killing of Shark for making this drug will be responsible for its extinction. the argument can be weakend by stating that if the sharks are used to produce the drugs under supervision that allows this species to reproduce, hence postponing its extinction.

  8. shyam says:

    The answer is D.

  9. shalabh says:

    D

  10. Vijay says:

    E.The para says that the sub species of the shark will become extinct..I think any argument that targets this will weaken the argument.
    E says that shark generally lives in largely inaccessible waters which would effectively mean that not all the shark would be caught to produce treatment.

    TakeGmat….OA please.

  11. kapil dhawan says:

    its surly D AS IT WEEKNS THE ARGUMENT BY CONFIRMING THAT WITH PROPER CONDITIONS THE SHARKS CAN REPRODUSE. THAT MEANS THEY (SHARKS) CAN GROW IN POPULATION SO IT STRAIGHTAWAY WEEKNS THE POINT OF EXTINCION

  12. prash.means.business@gmail.com says:

    E, seems to be correct,.

    D,says it’ll reproduce, but under artificial conditions, where they can easily be killed for the drug. more the reproduction , more the killing, for drug.

  13. rajuamresh says:

    I think its D.

  14. Akshit Bajaj says:

    I say the answer is E .. as if sharks live in inaccessible waters, they cannot be accessed… that means they can’t get extinct… wot say guys ? n wot say GMAT team…

    It can’t be D as.. we are not sure whether the sharks are being kept captive for reproduction or not….

  15. lakshmi says:

    D

  16. yash says:

    E.

    D raises many counter questions, answers to which might strengthen the argument.

  17. mag says:

    E, beacuse it is inaccessible, it will not be extinct.

  18. Latha says:

    My ans is D.
    What does the OG say?

  19. Rajesh says:

    I will go for D.

    From the given argument Conclusion is
    Continued production of the drug must inevitably lead to the extinction of this sub-species of shark.

    To weaken this conclusion the shark will not get extinct if reproduction happens in higher number it is clearly stated in D.

    The sub-species of shark will reproduce in captivity under the proper conditions.

    Take GMAT give your answer.

  20. sky says:

    D I think it is the option D

  21. Immanuel Ashok says:

    The conclusion is that the continued production of THE DRUG leads to the extintion of this species. Further THE DRUG is created from the cartiledge of the shark.

    If other organs of the shark can create OTHER DRUGS, then the continued production of these OTHER DRUGS itself can lead to extinction of the shark and not necessarily THE DRUG as mentioned in the conclusion.

    Hence the correct answer is C.

  22. The Don says:

    D, MOST weakens…

    E weakens the arguement, but the accessibility of the waters is not addressed in the premise. It’s simply unknown whether we’ve already devised a way to capture the sharks despite the inaccessiblity. Furthermore, the premises made do not hinge on this fact.

    D, weakens the most because it DIRECTLY attacks the premise that the sharks are rare in the wild…well it follows that if they’re rare in the wild, but procreate in captivity, this premise is invalid, or needs further information for validation.

    None other directly attack any of the premises or conclusion made.

  23. parvez says:

    The answer is E.
    Nothing is mentioned about reproduction of shark. The argument that weakens the argument is E becuase it states that the shark stays in mostly inaccessible water thereby concluding that the shark will remain safe and large scale slaughter of shark wont take place for the drug manufacture.

  24. Laura says:

    D, with the same logic as The Don.

  25. Kuldeep Sharma says:

    D

  26. JT says:

    D

    E sounds good too, but the conclusions says that “production will lead to extinction..” so the implication of E, that production itself will be very difficult, does not actually weaken the conclusion that production implies extinction.

  27. JT says:

    … whereas D says we can capture a small number of sharks, breed them in captivity to produce the drug, and leave the remaining wild ones alone, allowing production without extinction.

  28. Matt M says:

    imma go with D on this one

  29. Basant says:

    i will go with D… i weakens the statement by saying that the population wont decrease bcoz sharks will reproduce in the captivity…

  30. kashmira says:

    D is the answer
    Since the strong point of the passage is the extinction in sub-species of shark , so the most powerfull point to weaken this is to go against the growth of species.Therefore, D is the weak statement for the stimulus because it shows the captive reproduction in sub-species of shark.

  31. aryan says:

    D….but take gmat what´s wrong with E….guide pls

  32. nishant_mba says:

    LETS ELIMINATE WITH SOME COMMON SENSE:
    (a) DISTRIBUTION THROUGH CENTRAL AUTHORITY– CAN NOT CHECK BLACK MARKETING. YOU KNOW DRUG TRAFFICKING.
    (b) he drug made from the shark cartilage is expensive to produce: DOESN’T MATTER, WE DONT KNOW-MAY BE MANY PEOPLE ARE READY TO PAY BOMBSHELLS TO COMBAT CANCER.
    (C)Other organs of the shark can be utilized to produce different drugs: IRRELEVANT
    (D): YEAH THAT IS WIN-WIN.. YOU KNOW ABOUT SWEET WATER PEARLS
    (e): INACCESSIBLE IS A RELATIVE TERM.. VERY SUBJECTIVE, IT YOU ASSOCIATE A RIGHT PRICE, ANY LOCATION IS ACCESSIBLE. THIS OPTION IS LOOSE ONE.

  33. XYZ says:

    1.A drug …can be obtained …
    2.continued production of the drug MUST inevitably lead to the extinction

    These two points shows that the procedure of drug production is not currently carried out . So the answer should be E .

  34. Vivek says:

    It’s d.

  35. ismitevijay says:

    d: I suppose . Can someone provide the correct answer

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