In which sentence is the word "yield" used as a verb？ （）

In which sentence is the word "yield" used as a verb？ （）
A、The crop yield has increased this year.
B、Favourable weather yielded a good crop.
C、The yield on this investment is substantial.
D、The initial gross yield is estimated at 6.6%.
正确答案：Favourable weather yielded a good crop.