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?

Question

Examsnet · Accepted Answer

Correct Answer is :  The sub-species of shark will reproduce in captivity under the proper conditions.

GMAT Verbal Reasoning Practice Test 2