Câu 157: GMAT Section 3 Verbal Ability: Section Three Verbal Ability

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?

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