从方框中选择正确选项，其中有一个选项与对话内容无关。

（In the Lost and Found Office）

A: Excuse me. I lost a book. Can you help me, please?

B: Yes.

A: It's about computers.

B:

A: Yes, it is. My name is Frank.

B:

A: Yes. F-R-A-N-K.

B: Oh, I see. Look at this one.

A: Yes! Thank you!

B:  Mike found your book.

A: I must thank Mike. Bye!

B: Bye!

A. Is it yours? B. You're welcome. C. Have a good day. D. Can you spell it, please? E. What's your book about? F. Is your name on the book?