确认GWD一道题的答案

The market for recycled commodities like aluminum and other metals remain strong despite economic changes in the recycling industry.

1. commodities like aluminum and other metals remain
2. commodities like those of aluminum and other metals are remaining
3. commodities such as aluminum and other metals remains
4. commodities, such as aluminum and other metals, remain
5. commodities, like the commodities of aluminum and other metals, remains

这到题为什么天山和GWD给的都是E，难道LIKE在这里不代表比如的意思了吗，LIKE不是不能表示举例吗，我觉得还是C好

这里的主要问题是recycled commodities不是aluminum and other metals而是the commodities of aluminum and other metals。

"aluminum and other metals" are  raw materials, not commodities.  "the commodities of aluminum and other metals" is correct. 

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