[求助]帮我看看这道语法题！！！

Archaeologists in Ireland believe that a recently discovered chalice, which dates from the eighth century, was probably buried to keep from being stolen by invaders.

(A) to keep from

(B) to keep it from

(C)to avoid

(D)in order that it would avoid

(E)in order to keep from

答案是C 解释是说该答案最简洁。

为什么不选前两个？ 还有AB 有什么差别？

(A) to keep from

(B) to keep it from

(C)to avoid

我是觉得B的it指代不清

至于keep from=avoid使用两个字没有一个字简洁…

From OG(Purple Cover)

61．Archaeologists in Ireland believe that a recently discovered chalice．which dates from the eighth century, was probably buried to keep from being stolen by invaders．

(A)  to keep from

(B)  to keep it from

(C)  to avoid

(D)  in order that It would avoid

(E)  in order to keep from

Grammatical construction

The phrase to keep from being stolen is incomplete；the reader does not know what might be stolen．Inserting a pronoun makes it clear to the reader that it is the chalice that might be stolen．

A  Pronoun it is needed for clarity．

B  Correct．The sentence is clarified by inserting the word it, which refers back to chalice．

C  Pronoun it is needed for clarity；this suggests the chalice acts to prevent its own theft．

D  Pronoun it is needed for clarity；this suggests the chalice acts to prevent its own theft；in order that it would is wordy．

E  Pronoun it is needed for clarity．

The correct answer is B．

B是正确的。因为bury这个动作是有发起者的，而这个发起者会使句子产生歧义。如果把巨资改为the chalice was buried by its owner to keep from being stolen，那究竟是防止chalice被偷，还是防止its owner's body被偷？

如果省略了it，那么句子就可以被理解为：

1）was probably buried to keep it from being stolen

2) was probably buried to keep its owner from being stolen

keep from  和  to avoid 都存在指代不明的错误，

而in order 则违背简洁原则