How did the United States' entry into World War II affect the American economy? A. It increased the availability of goods ... B. It produced a wave of labor outsourcing ... C. It slowed the growth of corporate profits ... D. It decreased unemployment significantly ...

Before America joined the war the country was in depression. After the Japs attacked Pearl Harbor the US entered the war. We had to make planes, tanks, vehicles, weapons, ammunition, etc., and it created thousands of jobs. America then started sending supplies to our troops overseas as well as other Allied troops. The answer is D.