Since the End of the Cold War

Since the end of the Cold War,

A) the United States and Russia have attempted to weaken each other through a series of "proxy wars."
B) Russia has ceased to hold significant power on the world stage.
C) the international community has meekly acquiesced to American international supremacy.
D) NATO has expanded to include a number of nations that formerly belonged to the Soviet bloc.
E) the United States has encouraged the restoration of the Russian military and the expansion of Russian territory in order to restore a bipolar world system.