[求助]请教11OG黄皮第104题

104。Nuclear fusion is the force that powers the Sun, the stars,and hydrogen bombs, merging the nuclei of atoms and not splitting them  apart , as in nuclear reactors.

正确答案：c.Meriging the nuclei of atoms rather than splitting them apart, as nuclear reactors do

D.and merges the nuclei of atoms but does not split them apart, as is done in nuclear reactors

问题：

c为什么不对？ETS的解释是：punctuation makes clear this separate action cannot be the case.为什么？不太明白。有逗号就不能成为正确答案了？

恳请指点！！

这道题OG上的答案是C.

争意选项是E.

LZ问的是C为什么对吗?

sorry,确实是想问为什么C正确，主要是ETS的解释：punctuation makes clear this separate action cannot be the case.不太明白。有逗号就不能成为正确答案了？

恳请指点

LZ能不能把OG11里的解释全写下来.班好象这里划线部份没有划前面那个逗号.和标点没关吧.