GWD20-19,找不到讨论贴，请NN解惑

Q19:

A study by the Ocean Wildlife Campaign urged states to undertake a number of remedies to reverse a decline in the shark population, which includes the establishment of size limits for shark catches, closing state waters for shark fishing during pupping season, and requiring commercial fishers to have federal shark permits.

1. which includes the establishment of size limits for shark catches, closing
2. which includes establishing limits to the size of sharks that can be caught, closing
3. which include the establishment of size limits for shark catches, the closing of
4. including establishing size limits for shark catches, closing
5. including the establishing of limits to the size of sharks that are caught, the closing of

 不明白答案为啥是E

你的答案是错的，应该是D

including作主句的伴随状语，which不能修饰population，所以ABC都错。

E中的the doing属于动名词，跟and后面的doing分词不平行，如果说including与and后的doing平行，那么the closing前面缺少and。总值e是错的

我说呢，我自己模拟时选的就是D，谢谢楼上的，另外想请教一下，GWD20 的答案哪里有阿，我math 和verbal都没有找到关于这套题的讨论