选择合适的句子补全对话

A. OK.  I'll take them. B. How much are they? C. What about the black boots (靴子)? D. I want a pair of boots. E. Can I help you?

A: Welcome to our shop.

B: Yes, please. 

A: What size do you wear?

B: Size 38.

A:

B: I don't like black.  I like the white boots.

A: 99 yuan.

B: