从所给出的句子中选出合适的选项完成对话。

A. What is the book about? B. What are you doing? C. How's the wind? D. How do people use the wind? E. Why is there wind around us?

Kitty: Hello, Alice.

Alice: Hello, Kitty.

Kitty:

Alice: I'm reading a book.

Kitty:

Alice: It's about the wind.

Kitty:

Alice: The wind is useful.

Kitty:

Alice: Because the air moves from one place to another place.

Kitty:

Alice: People use the wind to make electricity (电).