Which of the Following Statements Was True of the Great

Which of the following statements was true of the Great War?

A) The war was unique in the amount of hand-to-hand or short-range combat.
B) The Great War came last in a series of wars considered "industrial wars."
C) Weapons such as machine guns and submarines were rare at this time and did not increase the war's destruction.
D) Mechanized weaponry made the mass killing and destruction of the war possible.
E) Although many buildings were destroyed, the number of people killed was only in the thousands.