一条逻辑题。。求助。谢谢

dpzixuan89

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 cashew 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?
A.Some of the by-products of processing cashews are used for manufacturing plants and plastics
B.Other countries in which cashews are processed subsidize their processing plants
C.More people in kernland are engaged in farming cashews than in processing them
D.Buying unprocessed cashews at lower than world market prices enables cashew processors in kernland to sell processed nuts at competitive prices
E.A lack of profitable crops is driving an increasing number of small farmers in kernland off their land and into the cities
我不太明白题目最后一句话，因为所有的加工工厂都在城市里，所以去掉关税将会在接下来的五年中抑制政府对降低失业率所做的努力。。加工工厂跟unpocessed cashew有什么关系，出口的不都是未加工的吗？？答案选E。。感觉E有点support啊，不也是说增加失业率的吗。

芷萱85

K地对出口未加工的C果征收高额关税以保障C果能卖给本地的加工厂，如果关税解除且未加工的C果按照世界市场的价格出售，更多的农民可以通过种植C果获利，但是由于加工厂都市区，解除关税将会在未来的五年严重阻碍政府对降低失业率做的努力。
A，加工的副产品还有工业价值，加强
B.其他加工c果地国家都给加工厂补贴。无关
C.K地人更多的是从事种植而非加工c果。也就是说从事加工的人失业，但是数量不太大。算是小小程度的削弱
D.因为购买价格低，使得k地的加工厂加工的c果更有竞争力。取消关税势必会提高购买价格，这个有点儿反对前提的感觉。
E。因为种植业缺乏利润使得很多农民离土离乡进城了。也就是说c果种植业利润增加，农民种植有利润就会返乡，这会减少城市的就业压力。削弱。