What caused the collapse of the Soviet Union?

(1 point)
Responses

military intervention from the United States

military intervention from the United States

centers of Communism moved toward Western Europe and Asia

centers of Communism moved toward Western Europe and Asia

loss of money and power due to pressure from Iran and Iraq

loss of money and power due to pressure from Iran and Iraq

economic issues and peaceful demonstrations by Soviet citizens

economic issues and peaceful demonstrations by Soviet citizens