Why was there tension between the us and the ussr after world war ii?

a. their economies were competing for trade in western europe.
b. their economies were in danger of falling to communism.
c. their economies were based on different principles and systems.
d. their economies prevented them from influencing other countries.

The correct option is C

The American model of "stability" was based on the establishment of governments and economic markets similar to the US (capitalist), and the belief that the countries governed thus go to international organizations (such as the then future UN) to settle their differences. However, the Soviets believed that stability should be based on the integrity of the Soviet Union's own borders, implementing an economic system totally different from the United States.

an era of negotiation.

is that an answer to your question?

what are the choices?