Industrially,the Allies Had Several Advantages Over the Axis Powers,not the Least

Industrially,the Allies had several advantages over the Axis powers,not the least of which was:

A) a superior work force, which was able to maintain production utilizing eight-hour days throughout the war.
B) of more of their economies more efficiently to war production than any other nations.
C) the altruism shown by industrialists who forswore all profits for the duration of the war.
D) the use of all segments of the population in war work; schools were canceled so that children could work in factories.
E) more modern equipment and factories, since the Germans and Japanese had not been able to rebuild their industry after World War I.