The answer to this is African Americans.
Back around World War II they mostly pay attention to the war so the whole racism left African Americans alone because around that time they didn't quite care for that too much because they mostly want to keep on the whole war thing. Around that time the U.S was just about getting ready to get involved.
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Cutural development because if the culture wasnt developed they woud not have survived
C. the new jersey plan. the only two were new jersey and virginia, virginia (and the south)wanted to be represented based on population, because they had more people, but new jersey (and the north) wanted equal representation because they had much smaller and less populated states.
Answer:
The 1920's had many things but it was the radio! for sure as I read and learned from here!