Speaker A: Would you do me a favor？ Speaker B: ______A．I would.B．With pleasure.C．I don"t k

Speaker A: Would you do me a favor？ Speaker B: ______

A．I would.

B．With pleasure.

C．I don"t know if I can.

D．What is the favor？

请帮忙给出正确答案和分析，谢谢！