Mark the letter A, B, C, or D to indicate the correct response to each of the following exchanges.Câu hỏi “Do you mind if I make a phone call?” – “____” A. Yes, of course. The phone's in the hall. B. No, of course not. The phone's in the hall. C. It's my pleasure. The phone's in the hall. D. Never mind. The phone's in the hall.