请选择ABCD0o8x:L5a The song was very popular _________?'o9^:N'A'U7B(}0A/U.|*Q
A. in the 1980'o9^:N'A'U7B(}0A/U.|*Q
B. in 1970s'o9^:N'A'U7B(}0A/U.|*Q
C. in the 1970s'o9^:N'A'U7B(}0A/U.|*Q
D. 1970’s'o9^:N'A'U7B(}0A/U.|*Q