请教大全 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（C）

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

本人对C、D中的intended to sustain 修饰不明，在逻辑上应该修饰Alaska，但为什么使用过去分词形式？

intended修飾fund

fund that(which) is intended to sustain.......

C又比D好，因為D的its不知是指alaska還是fund

谢谢