A、They are too busy to spare the time. B、They have to learn many things. C、They often have no such interests. D、They don’t know

W: Do you think a hobby is important to a college student?
M: Sure. I think it can help improve the quality of life.
W: You are right. Hobbies are necessary for a person’s happiness.
M: But very often, college students are too busy to have hobbies.
W: So first you should know how to arrange your time.
M: Yes. By the way, do you have any hobby?
W: Well, my hobby is learning English.
M: Do you call that a hobby? That’s the thing you have to do at college.
W: Of course. But I really take it as a fun. I read novels.
M: Oh, to me, learning English is not so easy.