Q2:

Kernland imposes a high tariff on the export of unprocessed cashew nuts in order to ensure that the nuts are sold to domestic processing plants.  If the tariff were lifted and unprocessed cashews were sold at world market prices, more farmers could profit by growing cashews.  However, since all the processing plants are in urban areas, removing the tariff would seriously hamper the government’s effort to reduce urban unemployment over the next five years.

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

1. Some of the by-products of processing cashews are used for manufacturing paints and plastics.
2. Other countries in which cashews are processed subsidize their processing plants.
3. More people in Kernland are engaged in farming cashews than in processing them.
4. Buying unprocessed cashews at lower than world market prices enables cashew processors in Kernland to sell processed nuts at competitive prices.
5. A lack of profitable crops is driving an increasing number of small farmers in Kernland off their land and into the cities.

答案：E，看了有点糊涂，麻烦哪位nn好心给解释一下，谢谢！！

这个题目是要削弱结论，也就是说取消关税不会阻碍政府在未来５年内降低城市失业率，

Ｅ是从反面来说的，政府现在限制腰果出口，农民利润减少，所以他们就不愿意再种植，转

而去城市就业，就会提高城市失业率．

明白了，谢谢！！

但是想明白C,哪里有问题？谢谢