—I have to be at the office by noon tomorrow. My co-workers are taking me out for a final good-bye lunch.

— ________ Where are you going to eat?

—I don’t know. They want to treat me.

A．I don’t know.

B．How nice!

C．It’s my pleasure.

D．It’s none of my business.

下列与端粒有关的叙述，不正确的是（）

A．端粒是染色体两端的一个特殊的结构

B．端粒是染色体两端一段特殊的碱基序列

C．端粒与染色体的正常复制有关

D．端粒的长度与细胞的寿命也有一定的关系