How did radio shape modernism in the 1920s? a) by perpetuating black stereotypes b) by airing controversial programs c) by airing community-specific programs d) by creating a mass culture

D) by creating a mass culture

Explanation:

Mass culture is a set of objects, goods, and cultural services produced by cultural industries which are aimed at a heterogeneous audience. This culture is defined through mass media, which is the way that the cultural goods, services, ideas, and technology are advertised setting a massive consumerist culture. This mass culture is a characteristic of modern capitalist mass society and it was configured and shaped by radio during the 1920s, among other mass media. After radio technology was developed, this media rapidly spread throughout the world as a way to inform news, advertise, and impose musical and cultural trends.

increasing defense spending.

explanation: