Which of the following is the best evidence that Cold War fears affected American civil liberties during the 1950s?

A-the Soviet explosion of an atomic bomb

B-the election of Dwight Eisenhower

C-the arrest of Soviet spies

D-the McCarthy Senate hearings

The correct option is A

On August 29, 1949, the Soviet Union conducted a successful test of its first nuclear charge in the Semipalátinsk polygon. Then, the US had twice tested its new weapons in Japan and was not thinking about stopping it. However, the test in Semipalátinsk destroyed the US nuclear monopoly and guaranteed a long period of peaceful development for the Soviet Union.

a

Explanation:

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