which of the following changes in rhythm and blues indicated a progression toward rock and roll? a…

which of the following changes in rhythm and blues indicated a progression toward rock and roll? a. emphasized backbeat b. untamed vocals c. wilder style d. all of the above.
Answer
Answer:
D. All of the above
Brief Explanations:
Emphasized backbeat, untamed vocals, and wilder style all contributed to rhythm - and - blues' progression towards rock and roll.