求教GWD25-Q20

 GWD25-Q20

Most states impose limitations on the authority of the legislature to borrow money, with their objectives being to protect taxpayers and the credit of the state government.

A.      to borrow money, with their objectives being to protect

B.      to borrow money, the objectives of which are the protecting of

C.      to borrow money, limitations intended to protect

D.      for borrowing money, of which the objective is protecting 

E.       for borrowing money, limitations with the intent of protecting

选C

C是同位语。

D 可以看成同位结构省略也行，但是除了你说的错误，还有另一个错误，应该是the objective is to XXX而不是 is doing XXX