3ways the ussr was responsible for starting the cold war:

The Cold War was caused by the military expansionism of Stalin and his successors. The American response… was basically a defensive reaction. As long as Soviet leaders clung to their dream of imposing Communism on the world, the West had no way (other than surrender) of ending the conflict.

The long-term causes of the Cold War are clear. Western democracies had always been hostile to the idea of a communist state. The United States had refused recognition to the USSR for 16 years after the Bolshevik takeover. ... This would have relieved pressure on the Soviet Union from the attacking Germans.

they remained in rural areas and worked at jobs such as lumbering or farming.

d. china

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d is the best choice