Which statement best decribes the aftermath of the cold war?

A. most European countries adopted policies of isolation and stopped trade once the war was over
B. millions of lives were lost in combat and many soldiers suffered from the effects of chemical weapons and machine guns.
C. the society union became a world superpower
D. the soviet union was split into smaller countries and many easter European governments gave up their communist governments

D. the Soviet Union was split into smaller countries and many Eastern European governments gave up their communist governments