In sentence $11($reproduced below$),$ the writer wants to provide a link

$1$ point

between the main argument and the development of ideas within the paragraph.

To further compound the issue, the cost of recycling is on the rise.

Which of the following versions of the underlined text best achieves this purpose?

A$.($as it is now$)$

B$.$ Further complicating the process of recycling is that

C$.$ As if contamination wasn't a big enough problem,

D$.$ Recycling is made more ineffective by the fact that

E$.$ Many recycling companies must contend with the reality that