The 151 member governments of the World Bank are expected to increase the bank's funding by $75 billion, though some United States legislators cite an obstacle to congressional passage being the concern that the bank's loans will help foreign producers compete with American businesses.
(A) an obstacle to congressional passage being the concern
(B) a concern as an obstacle to congressional passage
(C) as an obstacle to congressional passage the concern
(D) the concern, an obstacle to congressional passage,
(E) as an obstacle for Congress to pass it the concern
这题选C，别的选项都知道为什么错了，可是不太明白为什么要用as，我觉得很多余啊，cite as。求各位帮忙翻译一下。谢谢大家
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