World War II Led to a Dramatic Increase in Economic

World War II led to a dramatic increase in economic growth in the United States because

A) the war caused the U.S.to move along its production possibilities frontier away from consumer goods and towards military goods
B) the economy was already at close to full employment
C) there were unemployed resources in the U.S.economy prior to the war
D) the economy shifted production towards more profitable consumer goods during the war
E) the opportunity cost of producing military goods increased considerably during the war years