OG 39问题，A怎么错了？

东方熠阳UID: 2679510

39.In 1527 King Henry VIII sought to have his marriage to Queen Catherine annulled so as to marry Annie Beloeyn.A. so as to marry
B.and so could be married to
C.to be married to
D.so that he could marry
E.in order that he would marry
答案为D。
但是A怎么错了？
so as to 的逻辑主语是句子的主语，没有指代不明。。为啥错捏？
谢谢