问题详情

Ann: Oh, it"s ten o"clock. I"d better go home now. Bill: ______.
A．OK. Please take your time.
B．You can"t go now. Don"t you want to stay any longer？
C．Won"t you stay for another cup of coffee？
D．Yeah, it"s really late. Why not immediately？请帮忙给出正确答案和分析，谢谢！