根据上下文提示，选择正确的句子补全对话

A. And this? B. Hello! C. Nice to meet you! D. It's a book. E. Goodbye.

Gogo:

Tony: Hi!

Gogo:

Tony: Nice to meet you, too!

Gogo: What's this?

Tony:

Gogo:

Tony: It's an apple.

Gogo:

Tony: Bye!