Sentence Correction

Dear Friends,

I was having problems in answering the following question.


Although improved efficiency in converting harvested trees into wood products may
reduce harvest rates, it will stimulate demand by increasing supply and lowering
prices, thereby boosting consumption.

A. in converting harvested trees into wood products may reduce harvest rates, it will
stimulate demand by increasing supply and lowering prices, thereby boosting
B. in converting harvested trees into wood products may reduce harvest rates, demand
will be stimulated because of increasing supply and lowering prices, which boost
C. of converting harvested trees into wood products may reduce harvest rates, it will
stimulate demand by increasing supply and lowering prices, which boosts
D. of harvested trees being converted into wood products may reduce harvest rates, it
will stimulate demand, because it will increase supply and lower prices, thereby
boosting
E. when harvested trees are converted into wood products may reduce harvest rates,
demand will be stimulated because of increasing supply and lowering prices, which
boost

Please help.

OA after some discussions.

My choice was option B

Regards
Deano.