so as to的用法 求助NN们！！

anmimiya

In 1527 King Henry VII sought to have his marriage to Queen Catherine annulled so as to marry Anne Boleyn.
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

是OG12的39题，选D，OG对A的解释是 "so as to marry" is not idiomatically correct; it does not identify who will marry.但是我看了很多帖子都说so as to的逻辑主语是整个句子的主语，那不就是King Henrry VII嘛。。为啥不知道谁会marry呢？