OG12 39题

鹤源

39.      In 1527 King HenryVIII sought to have his marriage to Queen Catherine annulled so as tomarry Anne Boleyn.  
(A)        so as to marry
(B)        and so could bemarried to
(C)        to be married to
(D)        so that he could marry
(E)        in order that he wouldmarry


此题答案为D。
OG解释说C选项应该在to do 前面加in order，请问为什么呢？加与不加有区别吗？
谢谢！

cheshou

表达目的性；

解除现在婚约的目的是和。。结婚

鹤源

但是to be married 不加 in order 不能表达出这种目的的效果吗？