[求助]OG上的一道题，望高人指点

an array of tax incentives has led to a boomin the construction of new office buildings;so abundant has capital been for commercial real estate that investors regularly scour the country for areas in which to build

A.So abundant has capital been for commercial real estate that

B.capital has been so abundant for commercial real estate,so that

C.the abundance of capital for commercial real estate has been such.

D.such has the abundance of capital been for commercial real estate that

E.such has been an abundance of capital for commercial real estate

请解释一下这里Capital的用法和意思！！以及怎么理解这句话。谢谢！！！！

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这不是个倒装吗?capital has  been so abundant for commercial real estate that investors regularly scour the country for areas in which to build

就是说用于建商业房的资金充足,以致投资者在全国范围内四处寻找可供建造楼房的地区.

倒装

用so that 很容易判断出正确答案