F: Hi, I'd like to check out these books. ,M: No problem, ma'am. I can help you with that. But Unfortunately you won't be able to borrow all of these today. We have a 10-book limit.
(A) F: I want to buy this book. (B) F: I didn’t hear you. Please could you tell me again? (C) F: Excellent! I can borrow more than 10 books. Thanks. (D) F: What a pity. I'd like to borrow these books when I finish the books I have.
D