Mark the letter A, B, C, or D to indicate the sentence that best completes each of the following exchanges.Câu hỏi Lan is talking to Minh. Lan: Do you mind if I open the window? I need some fresh air. - Minh: ________. A. I don't think so. B. Feel free to do that. C. That’s a shame. D. I’m not sure about it.