In the 1920s, movies, radios, and phonographs: a. appealed only to women. b. helped create and spread a new celebrity culture. c. were not yet available. d. were all out of reach of most consumers. e. were only available in urban areas.

b. helped create and spread a new celebrity culture.

Explanation:

In the 1920s, movies, radios, and phonographs helped create and spread a new celebrity culture. In the 1920s, The media was so concerned with the lives of celebrities and famous individuals, they were talked about them on radios, their lifestyles were portrayed in movies and they covered the pages of phonographic magazines. This actually helped in the spread of the celebrity culture which was just a rising thing then.

i would say b. research typically uses a variety of sources