求助，老prep2-45！！

45.   (33087-!-item-!-188;#058&007558)

The recent decline in the value of the dollar was triggered by a prediction of slower economic growth in the coming year.  But that prediction would not have adversely affected the dollar had it not been for the government's huge budget deficit, which must therefore be decreased to prevent future currency declines.

Which of the following, if true, would most seriously weaken the conclusion about how to prevent future currency declines?

(A) The government has made little attempt to reduce the budget deficit.

(B) The budget deficit has not caused a slowdown in economic growth.

(C) The value of the dollar declined several times in the year prior to the recent prediction of slower economic growth.

(D) Before there was a large budget deficit, predictions of slower economic growth frequently caused declines in the dollar's value.

(E) When there is a large budget deficit, other events in addition to predictions of slower economic growth sometimes trigger declines in currency value.

哪位高手能指点一下！？！

哦哦~~想明白了，是D

原文是说，如果不是因为有巨大的财政赤字，对未来经济增长放缓的预测也不会如此影响美元的币值

D排除了财政赤字的影响，预测也会影响币值，对原文进行了驳斥

而E是在财政赤字存在的情况下，说还是有其他因素会影响币值，对原文的驳斥远没有D强烈