As Soldiers on Both Sides Realized That No One Could

As soldiers on both sides realized that no one could gain an advantage in trench warfare

A) savage treatment of prisoners became commonplace.
B) the trenches were sterilized and sanitized and offered satisfactory accommodation.
C) daily life for the soldier became increasingly squalid and miserable in rat-infested trenches.
D) they were increasingly encouraged by their officers not to fight and to await a peace treaty ending the war.
E) most of the participants on all sides simply quit active fighting and the war bogged down into a stalemate.