请教大全 118

118.Art museums do not usually think of their collections as capital or consider the interest income that would be generated if a portion of the capital would have been invested in another form.

(A) be generated if a portion of the capital would have been

(B) have been generated if a portion of the capital would have been

(C) be generated if a portion of the capital were

(D) be generated if a portion of the capital was

(E) be generated if a portion of the capital had been

答案C，我选A。原因是would have been这里虚拟语气，跟would be generated相符，而且capital应该是不可数，怎么会选C里面用复数的呢？

请各位高手指点