For Some,a Perhaps Unexpected Consequence of the Cultural Revolution of the 1950s

For some,a perhaps unexpected consequence of the cultural revolution of the 1950s and 1960s was the:

A) re-release and popularity of classical recordings and concerts.
B) increase in attendance at jazz concerts that far surpassed ticket sales for rock-n-roll concerts.
C) downturn in sales of records of all genres.
D) surprising resurgence of popularity for folk music.
E) wave of popularity for country music that swept the United States.