the answer is "D" but im really sorry if wrong hope it helps you
The Cold war has also affected us today by helping the West evade Communist rule; without intervention from The U.S. forces China and The Soviet Union might have conquered Europe and The U.S.. Finally, The Cold War helped form modern day friendships, alliances and hostilities between countries.
D.
Because the author can show how characters change (A), but they need to show how the characters acted before the change (C). And B is just what explains the character.
