What led to the popularity of rock n’ roll music in the 1950s?

teenage consumerism
improvement of the highway system
increase in the status quo
invention of the radio
C?

3 answers

Increase in the status quo? What does that mean?
My text mentioned how teenagers in the 50's were more liberal than their parents and questioned that status quo, so I thought that could be it. Is it A?
Yes, A.