大全Section A 24，没找到想要的解释

24.   Even astronomers were amazed at the success of the Neptune flyby, which produced a photograph of a previously undetected moon;
                    this is likely to result in increased governmental support for the hitherto neglected U.S. space program.

(A) this is likely to result in

(B) that will cause

(C) and which is likely to result in

(D) this success is likely to result in（D）

(E) it is likely to result with

请问E为什么不对？这个语法概念一直很混淆~~~

那什么情况下用it is +adj 之类的结构是适用的？

好像做到现在碰到这种结构的选项都不对，难道都是因为指代不清吗？