新版PREP SC 249题，不懂，求助！

azhongzhong

249.    (27345-!-item-!-188;#058&002345)    (GWD-10-Q36:GWD-11-19)

In Hungary, as in much of Eastern Europe, an overwhelming proportion of women work, many of which are in middle management and light industry.
A. as in much of Eastern Europe, an overwhelming proportion of women work, many of which are in
B. as with much of Eastern Europe, an overwhelming proportion of women works, many in
C. as in much of Eastern Europe, an overwhelming proportion of women work, many of them in
D. like much of Eastern Europe, an overwhelming proportion of women works, and many are
E. like much of Eastern Europe, an overwhelming proportion of women work, many are in
这道题我选的A,答案是C，但是C 逗号后面一句many of them in，不是一个完整的句子啊，如何解释啊？还有A项的which为何不可以指代前面的work？求解答，谢谢！

helio5

独立主格嘛