怎么都想不通的一道题，求解

selinataki

Twelve years ago and again five years ago, there were extended periods when the Darfir
                    Republic's currency, the pundra, was weak:  its value was unusually low relative to the world's most stable currencies.  Both times a weak pundra made Darfir's manufactured products a bargain on world markets, and Darfir's exports were up substantially.  Now some politicians are saying that, in order to cause another similarly sized increase in exports, the government should allow the pundra to become weak again.

 

Which of the following, if true, provides the government with the strongest grounds to doubt that the politicians' recommendation, if followed, will achieve its aim?

 

(A) Several of the politicians now recommending that the pundra be allowed to become weak made that same recommendation before each of the last two periods of currency weakness.

(B) After several decades of operating well below peak capacity, Darfir's manufacturing sector is now operating at near-peak levels.

(C) The economy of a country experiencing a rise in exports will become healthier only if the country's currency is strong or the rise in exports is significant.

(D) Those countries whose manufactured products compete with Darfir's on the world market all currently have stable currencies.

(E) A sharp improvement in the efficiency of Darfir's manufacturing plants would make Darfir's products a bargain on world markets even without any weakening of the pundra relative to other currencies.

答案是B，想不通啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊啊！！

jtcoffeebean

前提：在前两次pundra weak时，D国厂商在世界市场上制造了一种廉价的货物，该国出口量显著上升-〉politicians结论：政府应当以准许pundra weak的方式使得出口量获得与之前两次同样程度的增长

问：那个选项让政府不信政治家们的话

B选项：D国的制造区经过几十年在（世界市场）容量顶峰水平下经营后，几乎已经到达顶峰水平。——〉没有必要也没有市场容量再进行市场扩张，因为制造业这方面的市场容量已达饱和——〉不能再获得出口量的增长了

selinataki

Thx!!!!!!!!!!