What Did Fighting a Defensive War Mean for the Confederates

What did fighting a defensive war mean for the Confederates?

A) The Confederate soldiers could sleep in their own beds at night.
B) It was a strategy that Robert E.Lee did not agree to use.
C) Since the weapon technology was basically equal,it was an advantage for the Confederates.
D) This strategy did not work because the Union used the same defensive tactics.
E) The aggressive Union armies would put a quick end to the war.