<h2>Answer:</h2>
promoted a stance of isolationism
<h2>Explanation:</h2>
What ensued was a radical shift in U.S. foreign policy, which promoted a stance of isolationism that would last until World War II. Warren Harding won the 1920 presidential election on the promise of staying out of global affairs, and by arguing that the United states needed normalcy and a focus on internal problems.
<h2>#CarryOnLearing </h2>
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C.1 because it is the only responsible answer
This policy was called "containment" - the idea was to contain communism from spreading to new countries without trying to actively challenge the communist system in the countries that already had it.
This policy lead to some proxy wars, in which the US fought the Soviet Union for the free countries.
Nucleus controls the cells :)