og88现在完成时的问题

88. The Emperor Augustus, it appears, commissioned an idealized sculpture portrait, the features of which are so unrealistic as to constitute what one scholar calls an "artificial face."

(A)  so unrealistic as to constitute

(B)  so unrealistic they constituted

(C)  so unrealistic that they have constituted

(D)  unrealistic enough so that they constitute

(E)  unrealistic enough so as to constitute

         key:A     

看过以前的讨论但是没有提这个问题，我就是想不明白c为何不正确，现在完成时不是表示过去发生的事情对现在还有影响么？这个为何不能理解成对现在的影响啊？

55555家里发洪水了，等人来修呢。

哦，还是那句话：尊重原文的意思！！！嗬嗬

谢谢你！