根据对话内容，从方框内的选项中选出能填入空白处的最佳选项，其中有两个为多余选项。

A. It makes people relax, doesn't it? B. I am a fan of him. C. He can play a lot of blues music. D. It's a piece of classical music. E. Who is it by? F. This music isn't very popular in China. G. Do you know the music?

A: Bob, listen! How wonderful the music is!

B: Yes! I like it very much.

A: I don't know. Maybe Emma knows it.

B: Hi, Emma.

C: Yes. It's by Mozart.

A: What kind of music is it?

C:

A: It is nice. Do you like it, Emma?

C: Yes. What music do you like, Bob?

B: I like rock music.

A: Yes. But I prefer Beijing Opera.

C: You heard of Yu Kuizhi, didn't you? He sings very well.

A: Yes.