想请教一道prep08黑脸题

115.Incountries where automobile insurance includes compensation for whiplashinjuries sustained in automobile accidents, reports of having suffered suchinjuries are twice as frequent as they are in countries where whiplash is notcovered.  Somecommentators have argued, correctly, that since there is presently no objective test for whiplash, spurious reports ofwhiplash injuries cannot be readily identified.  These commentatorsare, however, wrong to draw the further conclusion that in the countries with the higher rates ofreported whiplash injuries, half of the reported cases are spurious:  clearly, in countries where automobileinsurance does not include compensation for whiplash, people often have littleincentive to report whiplash injuries that they actually have suffered.

In the argument given,the two boldfaced portions play which of the following roles?

(A)  The first is evidence that hasbeen used to support a conclusion that the argument criticizes; the second isthat conclusion.

(B)  The first is evidence that hasbeen used to support a conclusion that the argument criticizes; the second isthe position that the argument defends.

(C)  The first is a claim that hasbeen used to support a conclusion that the argument accepts; the second is theposition that the argument defends.

(D)  The first is an intermediate conclusion that has been used tosupport a conclusion that the argument defends; the second is the position thatthe argument opposes.

(E)  The first presents a claim thatis disputed in the argument; the second is a conclusion that has been drawn onthe basis of that claim.

答案是A，想问一下第一句为什么是evidence呢？evidence的话就是fact，但是第一句黑体开头那写的commentators argued，这难道不应该是他们的claim吗？