问题详情

Speaker A: How do you do？ Im pleased to meet you. Speaker B: ______

A．How do you do？ Have a good day.

B．I"m fine. It"s nice to meet you.

C．How do you do？ The pleasure is mine.

D．I"m fine. I"m delighted to know you.

请帮忙给出正确答案和分析，谢谢！