The Cold War refers to the period from 1946 to 1989 in which

A) foreign policy presented few challenges to American hegemony.
B) the world remained basically peaceful due to the memories of world war.
C) the prestige of the executive branch fell dramatically.
D) the U.S. and Soviet Union threatened one another with nuclear destruction.
E) the U.S. did not speak to the Soviet Union diplomatically.

D