请根据对话内容，从下列所给的选项中选出能填入空白处的最佳选项，使对话意思完整。其中有一项为多余选项。
A: Dad, I want to know about China. Can you help me?
B: 【小题1】 China is a big country which attracts many tourists from all over the world every year.
A: Is that so? 【小题2】
B: Yes. And many of them are famous, such as Mount Tai, Mount Huang and Mount Emei.
A: What about rivers?
B: There are many rivers in China. Among them the Yellow River is the second longest one. 【小题3】
A: Do you know about Chinese people?
B: 【小题4】
A: They are great. We should learn from them. Anything else?
B: Sorry. That’s all I know. If you want to learn more, you can read Guide to China. 【小题5】
A: Thanks. I’ll read it.

A．It’s the birthplace of Chinese culture.

B．How many famous mountains are there in China?

C．Oh, they always get together to solve the difficult problems.

D．Are there any beautiful mountains?

E．Sure, but I know just a little.

F．It’s a book which introduces China.