Answer:
The correct answer is A. audiences for popular music shifted from radio to television
Explanation:
In 1948 the radio reached its peak in relation to financial success. However, after 1948, national media dominated by network radio succumbed from 46% in 1945 to 25% in 1952. In the late 1950s, most radio stations disengaged from networks, switching to cheaper programs. Thus, the radio was transformed from a national to a local advertising medium, and its centrality in american popular culture was quickly occulted by television.
Answer:
Industrial expansion and population growth radically changed the face of the nation's cities. Noise, traffic jams, slums, air pollution, and sanitation and health problems became commonplace. Mass transit, in the form of trolleys, cable cars, and subways, was built, and skyscrapers began to dominate city skylines.
Explanation:
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