How did the great depression prepare Roosevelt for the war effort?

World War 2 allowed the US to be pulled out of the Great Depression, since the weapons manufacturing increased the revenue and economic status of the nation. Roosevelt issued his 3 Points plan to prepare for this and the US slowly became viably wealthy from the war. Until, of course, in 1917 when the US joined on the sides of Britain and France.

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i would say your answer is a)

sorry if im wrong