Qn:280

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
(E) it is likely to result with

Official Answer: D