Q9:

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.不相关的是指在施加关税的情况下.

5. A lack of profitable crops is driving an increasing number of small farmers in Kernland off their land and into the cities.

   Answer: E

看不明白，Ｅ好像不相关吗．难道是说城里失业的不是由于题干中原因造成的？是农民进入了．