Do you know the music? It's being played on the ra...

Câu hỏi: Do you know the music? It's being played on the radio.

A. Do you know the music who is being played on the radio?

B. Do you know the music when is being played on the radio?

C. Do you know the music that is being played on the radio?

D. Do you know the music where is being played on the radio?