What Factor Was Primarily Responsible for the Excess in Production

Multiple Choice

What factor was primarily responsible for the excess in production capacity in the United States after World War II?

A) The United States government raised the tariffs on most imports by 60%.
B) Many firms from other nations shifted their production facilities to the United States.
C) Domestic demand was at a historic low and resulted in excess capacity.
D) The returning military after World War II increased the labor supply in the United States.
E) The implementation of the Marshall Plan dampened the overseas demand.