You are doing homework and your roommate Jack is listening to music on the radio, you want to ask him to turn down the radio , how will you say politely？

A.Turn your radio down, Jack.

B.Would you mind turning your radio down, Jack？

C.Don’t you see I doing homework？ Turn your radio down, Jack.

D.I hate your loud music, turn it down.

正确答案：Would you mind turning your radio down, Jack？