| 165. Country Y uses its scarce foreign-exchange reserves to buy scrap iron for recycling into steel. Although the steel thus produced earns more foreign exchange than it costs, that policy is foolish. Country Y’s own territory has vast deposits of iron ore, which can be mined with minimal expenditure of foreign exchange.
Which of the following, if true, provides the strongest support for Country Y’s policy of buying scrap iron broad?
(A) The price of scrap iron on international markets rose significantly in 1987.
(B) Country Y’s foreign-exchange reserves dropped significantly in 1987.
(C) There is virtually no difference in quality between steel produced from scrap iron and that produced from iron ore.
(D) Scrap iron is now used in the production of roughly half the steel used in the world today, and experts predict that scrap iron will be used even more extensively in the future. E
(E) Furnaces that process scrap iron can be built and operated in Country Y with substantially less foreign exchange than can furnaces that process iron ore.
165.
Choice E, the best answer, furnishes two pieces of information that together support the policy. First, furnaces that process scrap iron may be unable to process iron ore. Second, obtaining and operating furnaces that can process iron ore would require substantially more foreign exchange, thus possibly offsetting any advantage from processing domestic iron ore.
The possibility of increases in scrap iron’s price (choice A) speaks against the policy. The vulnerability of Country Y’s foreign-exchange reserves (choice B) emphasizes the need to conserve foreign exchange, but does not indicate which mode of steel production best accomplishes this. Choice C is neutral between the modes production. Choice D would support the policy only with assumptions about the reasons for the experts’ prediction.
ets认为C选项是中立的，怎么我觉得是属于削弱的呢？ | 
