[求助]大全-20-5的逻辑关系

5.      In several cities, the government is going ahead with ambitious construction projects despite the high office vacancy rates in those cities. The vacant offices, though available for leasing, unfortunately do not meet the requirements for the facilities needed, such as court houses and laboratories. The government, therefore, is not guilty of any fiscal wastefulness.

Which of the following is an assumption on which the argument above depends?

(A) Adaptation of vacant office space to meet the government’s requirements, if possible, would not make leasing such office space a more cost-effective alternative to new construction.

(B) The government prefers leasing facilities to owning them in cases where the two alternatives are equally cost-effective.

(C) If facilities available for leasing come very close to meeting the government’s requirements for facilities the government needs, the government can relax its own requirements slightly and consider those facilities in compliance.

(D) The government’s construction projects would not on being completed, add to the stock of facilities available for leasing in the cities concerned.（A）

(E) Before embarking on any major construction project, the government is required by law to establish beyond any reasonable doubt that there are no alternatives that are most cost-effective.

这题我看不懂意思,凭感觉选了A居然对了...请问有人可以帮我解释一下逻辑关系以及与选项间的关系吗?   一头雾水......

原文说尽管在这些城市中建筑的空置率很高，但地方政府仍然要大兴土木，因为这些空置楼的硬件条件无法达到使用需要，因此政府无需对这种浪费感到愧疚。

A是一个明显的not+weaken的假设选项，将A取非Adaptation of vacant office space to meet the government’s requirements, if possible, would make leasing such office space a more cost-effective alternative to new construction.刚好可以反驳结论，说明政府的行为是 not cost-effective

啊，那要加油哦，祝你取得好成绩！

我还有一个月要煎熬~~