Option D: in the 1930s, black musicians saw the market for their work disappear entirely.
When World War 1 started, the nation was utterly unprepared. The majority of banks were unregulated and uninsured. People stopped spending when they lost their jobs since there was no insurance or unemployment benefits offered by the government. A regular recession turned into the Great Depression, which came to represent the 1930s, when the consumer economy collapsed. Similarly, black musicians attracted less audiences. Thus, option D is correct.
Even in the midst of turmoil and bad circumstances, people still need to be entertained. In the 1930s, big bands and swing music were extremely popular; notable bandleaders included Glenn Miller, Benny Goodman, and Duke Ellington. As the bands started breaking up in the 1940s, band vocalists like Sarah Vaughan and Frank Sinatra started performing solo. There was a rise in wartime music.
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