The opening of the Erie Canal

Dear Friends,

I was having problems in answering the following question.


When a ton of wheat was being moved from Buffalo to New York City before the
opening of the Erie Canal in 1825, it took three weeks and cost $100, but when the
canal was used, it took less than eight days and cost less than $6.

A. When a ton of wheat was being moved from Buffalo to New York City before the
opening of the Erie Canal in 1825, it took three weeks and cost $100, but when the
canal was used, it
B. Moving a ton of wheat from Buffalo to New York City before the opening of the Erie
Canal in 1825, it took three weeks and cost $100; using the canal, it
C. Before the opening of the Erie Canal in 1825, moving a ton of wheat from Buffalo to
New York City took three weeks and cost $100; on the canal the move
D. In 1825, before opening the Erie Canal, to move a ton of wheat took three weeks from
Buffalo to New York City, which cost $100; moving it on the canal
E. To move a ton of wheat in 1825 from Buffalo to New York City took three weeks
before the opening of the Erie Canal, costing $100, but in using the canal, the move


Please help.

OA after some discussions.

My choice was option B

Regards
Deano.