Answer:
The oil crisis of 1971 added to severe U.S. economic problems
<em>On December 1, 1955, the modern civil rights movement began when Rosa Parks, an African-American woman, was arrested for refusing to move to the back of the bus in Montgomery, Alabama.</em>
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<h2><em>Can I have a Brainliest?</em></h2>
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Answer:
A is the correct answer because of the US being in fear of communism spreading even more than just Vietnam.