Answer:
A) A Great Economic Depression.
Explanation:
The Great Depression did not occur until after World War II, and was one of the reasons that World War II occurred in the European theater.
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I’m pretty sure the 2nd one
During the 1920s and 1930s, the U.S. pursued a policy of <u>isolationism</u>, similar to the time prior to World War I.
United States followed an isolationist policy in the 1920s and 1930s because during the 1930s, the combination of the Great Depression and the memory of tragic losses in World War I contributed to pushing American public opinion and policy toward isolationism.
The isolationism advocated non-involvement in European and Asian conflicts and non-entanglement in international politics. There were some measures taken by U.S. to avoid political and military conflicts across the oceans.
Hence, the leaders of the isolationist movement drew upon history to bolster their position.
To learn more about the policy of isolationism here:
brainly.com/question/1002195
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No, the Monroe Doctrine does not provide U.S. sympathy for the new revolutionary governments in South America. You're thinking of the "Good Neighbor" policy.