关于目的to do和for doing的区别

感觉好像GMAT不大用for doing表示目的，不过在做GWD 的时候发现有这道题。

GWD-9-Q17:

Unlike most other mergers in the utility（公用事业，向公众提供天然气、水、电力、运输等服务） industry, which have been driven by the need to save money and extend companies’ service areas, the merger of the nation’s leading gas and electric company is intended to create a huge marketing network for the utilities in question with states opening their utility markets to competition.

A.    and electric company is intended to create a huge marketing network for the utilities in question with states opening

B.    and electric companies are intended to create a huge network for marketing the utilities in question as states open

C.    and electric companies are intended to create a huge network that will be marketing the utilities in question, with states opening

D.    company and electric company are intending to create a huge marketing network for the utilities in question, with states opening

E.    company and leading electric company is intended to create a huge network for marketing the utilities in question as states open

为什么E选项是正确的呢？