T-4-Q41 (大全987-73)急问！！在线等！！

T-4-Q41 (大全987-73)

Alaska regularly deposits some of its profits from the sale of oil into a special fund, with the intention to sustain the state’s economy after the exhaustion of its oil reserves.

A.      fund, with the intention to sustain the state’s economy after the exhaustion of its oil reserves

B.      fund, the intention of which is to sustain the state’s economy after they have exhausted their oil reserves

C.      fund intended to sustain the state’s economy after oil reserves are exhausted

D.      fund intended to sustain the state’s economy after exhausting its oil reserves

E.       fund that they intend to sustain the state’s economy after oil reserves are exhausted

本题答案是C为什么不是D?  NN请解答
本人疑问在于：After做介词或连词均可以，D是分词的主动形式应该优于E的被动形式，为什么不选？

After doing ,
doing 这个动作的发出者是句子的逻辑主语，按照E的说法，则是Alaska exhausts its oil reserve. 而原文中没有这么说。