— His father used to be the mayor of the city.

— _____. What is important is whether he has the ability to do the job well. [ ]

A. It's up to you

B. That depends

C. Not at all

D. That's not the point

细胞分裂过程中，变化最大的是（　　）

A．细胞质

B．细胞核

C．细胞壁

D．细胞膜