by RonPurewal Tue Sep 25, 2007 5:53 am
Yep.
If you realize that 'market' is the subject, then you've got it down to C and E already, because the other three choices all contain plural verb forms.
What's most wrong with E is the repetition of the word 'commodities' (which, in addition to being needlessly repeated, is used incorrectly the second time, making it seem like aluminum owns commodities). The sentence actually makes sense with or without the commas: 'such as' shows that we're talking about recycled commodities as a class, and not restricting ourselves to the likes of aluminum and other metals (thereby justifying the use of commas if the writer so desires).
C is the best, although it's still not the greatest writing in the world.