8. Contrary to the scholarly wisdom of the 1950’s and early 1960’s that predicted the processes of modernization and rationalization would gradually undermine it, ethnicity is a worldwide phenomenon of increasing importance.

(A) would gradually undermine it

(B) to be a gradual undermining of it

(C) would be a gradual undermining of ethnicity

(D) to gradually undermine ethnicity（A）

(E) gradually undermining it

答案a不是让句子有了两个谓语了：predicted，would undermine

请大家解答，谢谢。

不过不明白A中it， 这明显指代不清晰么。 would be a gradual undermining of ethnicity 这一句"ethnicity" is very good cause it clearly discribed the n.