关于影响供给的基本因素的叙述中，不正确的是（）。

A.生产者或销售者的价格预期往往会引起供给数量的变化

B.技术水平在一定程度上决定着生产成本并进而影响供给数量

C.在其他条件不变的情况下，成本降低，供给数量会减少

D.在其他条件不变的情况下，某种产品的价格和其供给数量的变动呈正方向变化

Some women () a good salary in a job instead of staying home, but they decided not to work for the sake of the family.

A. must make

B. should have made

C. would make

D. could have made