—Did you go to the party last night? What do you think of it?

—_________. I really liked it.

A. It was very boring.

B. B. It will be very sunny .

C. C. We had so much fun.

下列是我国计划生育的四项具体措施，其中能起到提高人口素质的一项是（　　）

A．晚婚

B．晚育

C．少生

D．优生