FDR's New Deal was concerned to avoid another depression. The U.S, engagement in WWII spurred economic development,
The policies centered on what historians call the "3 R's": unemployment and poverty relief, economic recovery, and financial system reform to avoid another depression.
Due to the United States' engagement in World War II spurred economic development, it is difficult to assess the New Deal's success in ending the Great Depression.
Therefore, option c describes the effectiveness of the New Deal.
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