For rock n’ roll, which one is not true?

A.It has a strong beat and simple melodies.

B.It mainly based on the black rhythm, blues and white country music.

C. It’s a type of popular music developed in the early 1950s in America.

D.It is merely played by black musicians, and no white musicians play it.

正确答案：It is merely played by black musicians, and no white musicians play it.