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

A、B、C which修饰不清

D is the best，

请教D中INCLUDING做什么成分?修饰谁?隔这么远修饰A NUMBER OF REMEDIES?

同意楼上的