Answer :
The answer id A) It fed the American public'sfears about the dangers of communism.
The Soviet Union held its first successful atomic test as It fed the American public's fears about the dangers of communism.
What is the Soviet Union?
The Soviet Union is known to be called the Union of Soviet Socialist Republics as they were said to be Communist state that existed from 1922 to 1991.
Note that The Soviet Union held its first successful atomic test as It fed the American public's fears about the dangers of communism so that the U.S. will fear its powers.
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