请教OG10-125

Unlike the wholesale price of raw wool, the wholesale price of raw cotton has fallen considerably in the last year. Thus, although the retail price of cotton clothing at retail clothing stores has not yet fallen, it will inevitably fall.

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

(A)The cost of processing raw cotton for cloth has increased during the last year.

(E)The cost of harvesting raw cotton for cloth has increased during the last year.

答案是A

E为什么不对呢？

这两个有什么区别？

谢谢：）

Notice that there are a couple of different prices.

The conclusion of the argument is that retail price of cotton clothing will fall. To support the conclusion, the arguer uses an analogy between wholesale price of raw cotton and wholesale price of raw wool, to predict that former will fall.

(A) best weakens the argument by pointing out that even if such analogy is appropriate, the cost of processing raw cotton for cloth has increased, contributing to higher total cost for retail price of cotton clothing.

As OG points out, even if cost of harvesting raw cotton has increased (note: E does not say "for cloth" -- please check the OG), the most we can conclude is that wholesale price of cotton will increase. This contradicts a more fundamental assumption of the whole argument (the analogy), so is not the correct answer.

In my opinion, if A were not a choice, E could also serve as an answer, but A is closer to the argument than E is.

同意3楼大人的观点，raw cotton的价格应该已经包括了harvesting在内了 

而processing是发生在把raw cotton变成cotton cloth的过程中

觉得caterpillarcn和nicolew的更容易理解，gre0426的我再看看。

谢谢你们：）

yep,agree

the explanation in OG:

Harvesting costs are part of the assumed increased price of raw cotton and do not affect current retail prices．

我想问一下OG对B选项的解释是什么意思？没看懂。

B is incorrect because the argument focuses on incorrect becasuse it in effect denies that lower wholesale prices for cotton have been offset by rising operating costs.

谢谢啦~~~ 

555555~~~~怎么没人理呀~~~~

NN出来帮下我好吗？

不胜感激~~~