請問OG11-Review-16(原OG10-140)

OG11-Review-16 (原OG140)

Declining values for farm equipment and land, the collateral against which farmers borrow to get through the harvest season, is going to force many lenders to tighten or deny credit this spring.
(A) the collateral against which farmers borrow to get through the harvest season, is
(B) which farmers use as collateral to borrow against to get through the harvest season, is
(C) the collateral which is borrowed against by farmers to get through the harvest season, is
(D) which farmers use as collateral to borrow against to get through the harvest season, are
(E) the collateral against which farmers borrow to get through the harvest season, are

我的作法是

1. 主詞是Declining values=>複數=>去掉A,B,C

2.但是我無法找出D爲何不對，OG解釋是說 use as collateral to borrow against is redundant ,以我的程度,我在做題是看不出這個的，所以我想請問各位大大，D是否有其他錯誤

請各位大大分享，感激不盡

D farm equipment and land， which farmers use as collateral to borrow against to get through the harvest season

which的指代的问题，这里显然是

farmers use （farm equipment and land) as collateral to borrow (?)to ....

但是borrow后面没有代词，名词。。。。句子不通

E，同谓语the collateral against 【which。。。。。】结构完整，farm equipment and land作为农民借东西的担保

謝謝版主!!我明白了

想再請問一下，which 爲非限定指代,這裡會不會有指代不清的問題?

是否要改成for which才能明白表示是指代farm equipment and land?

Declining values for farm equipment and land, which farmers use as collateral to borrow against to get through the harvest season, are

不用for which吧

which指代上文的名词词组, 变换以后就是farmers use （farm equipment and land) as collateral to borrow , 不缺介词