Which of the following is not one of the causes of the origin of the Cold War?

a. The United States and the Soviet Union had a history of bilateral relations that
ranged from coolly formal to openly hostile.
b. The United States and the Soviet Union had different ideologies.
c. US policymakers saw Soviet moves into East Europe as oppressive expansion, and
Soviet policymakers were mistrustful of U.S. emphasis on free trade and free
elections.
d. The domestic situation in both the United States and the USSR was serious, with the United States
experiencing a severe recession and the USSR going through a power struggle.

d