Which of the following was NOT a contributor to the successful beginnings of rock and roll in the 1950s? a. The post WWII economic growth which led to more disposable income which could be spent on entertainment. b. The commercial radio was invented, leading to widespread exposure to rock and roll tunes. c. Post-Depression era teenagers had to spend less time working and on farms and had more leisure time to engage with music. d. Disc jockey Alan Freed redubbed rhythm and blues to rock and roll in order to reach a wider audience.

Which of the following was NOT a contributor to the successful beginnings of rock and roll in the 1950s? a. The post WWII economic growth which led to more disposable income which could be spent on entertainment. b. The commercial radio was invented, leading to widespread exposure to rock and roll tunes. c. Post-Depression era teenagers had to spend less time working and on farms and had more leisure time to engage with music. d. Disc jockey Alan Freed redubbed rhythm and blues to rock and roll in order to reach a wider audience.