[XDF书上的语法题

Even as they never forgave the Crusades who overran their homeland, the Syrians have never absolved the French for taking territory form them.

A.even as they never forgave

B.while they never forgave

C.just like they never forgave

D.similarly to not forgiving

E.in spite of their never forgiving

答案是A,可是为什么B不可以呢?