section 20 4

The aristocratic values expressed in the writings of Marguerite Yourcenar place her within the French classical tradition, as does her passionate interest in history, particularly Roman history.

(A) as does

(B) so do

(C) as do

(D) so is the case with（A）

(E) similarly, does

答案没问题，只是觉得这个AS应该是连词，它的用法是什么呢？

As her passionate interest in history places her within the French classical tradition, the aristocratic values expressed in the writings of Marguerite Yourcenar place her within the French classical tradition.

谢谢老兄