F: Hi, there. Did you have any questions about our bikes? ,M: Yeah, do you work on bicycles in addition to selling them? ,F: Oh, yes. We can handle any repairs you may need. ,M: That's great, but what I need is not exactly a repair. My cousin gave me a road bike, but I'm not tall enough to ride it. Can you put smaller wheels on it?
(A) F: Sure, there are some new bikes that you're looking for. (B) F: Sure, I will repair your bike within one hour. (C) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (D) F: Sure, I will change smaller wheels for your bike.
D