World War II Is Referred to as a "Total War

Multiple Choice

World War II is referred to as a "Total War" because:

A) military deployment took place in all European nations.
B) battles often included combined air,infantry and sea engagements.
C) civilians as well as military troops often were engaged in military action.
D) the war efforts changed the standards of living around the world.
E) new war technologies were introduced throughout the war effort.