Although it is true that some people in the neighborhood supported the expansion of the market a few year ago, now most of them ………. that it has gotten out of control and created many serious problems for the area.
A. would have agreed
B. would agree
C. agreeing
D. had agreed

Câu này trong Part 6, thầy giải thích giúp em đáp án A với ạ, em thấy chữ “now” mà sao không phải là B.