问一道GWD的题

bobchowz

Finally reaching a decision on an issue that has long been politically charged in the Pacific Northwest, politicians decided to postpone by at least five years an ambitious plan to protect wild salmon and other endangered fish, instead of which they proposed a series of smaller steps, by which they intend to protect the fish.

A.politicians decided to postpone by at least five years an ambitious plan to protect wild salmon and other endangered fish, instead of which they proposed a series of smaller steps, by which they intend

B.politicians decided to postpone by at least five years an ambitious plan to protect wild salmon and other endangered fish, proposing instead a series of smaller steps intended

C.politicians decided to postpone by at least five years an ambitious plan for protecting wild salmon and other endangered fish, and instead they proposed a series of smaller steps, intending.

D.an ambitious plan to protect wild salmon and other endangered fish was postponed by politicians, who instead proposed a series of smaller steps, intending.

E.an ambitious plan to protect wild salmon and other endangered fish has been postponed by politicians, proposing instead a series of smaller steps intended.

c选项和b选项的差别在哪里啊？

flyst7

GMAT里面表目的 不能用for doing的形式 要用to do