Option 4
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Isolationism of U. S causes Great Depression, and also contributed to the happening of World War II.
<h3>Impact of US isolationism </h3>
Isolationism is the philosophy in which the United State of America decided to no involvement in European and Asian conflicts and international politics. But the expansion of war put danger U.S economy and interests so that's why United States take part in the war.
So we can conclude that Isolationism of U. S causes Great Depression, and also contributed to the happening of World War II.
Learn more about war here: brainly.com/question/1420938
