I am pretty sure that the answer is C but I am not 100% confident
A - ( Wrong ) everyone regardless of class can realize how horrible war is
B - ( Correct ) Contempt meaning " T<span>he state of being despised; dishonor; disgrace" This makes the most sense out of any of them</span>
C - ( Wrong ) Who in the world is proud of war
D - ( Wrong ) Cencorship doesnt connect at all with regret of war