Why was there tension between the us and the ussr after world war ii? their economies were competing for trade in western europe. their economies were in danger of falling to communism. their economies were based on different principles and systems. their economies prevented them from influencing other countries.

The correct answer is: C. Their economies were based on different principles and systems.

Explanation

After World War II, the economic system of the United States was based in Capitalism, its principal ideas were the private capital and private means of production to develop, mainly focused on mercantile and free economical relationship. On the other hand, the economic system of Union of Soviet Socialist Republics as its name implies, based its economic system on Socialism, which principal ideas were the social control of means of production and the workforce. Due to this difference, both nations began an indirect conflict known as "Cold War" from 1946 to 1991. So, the correct answer is C. Their economies were based on different principles and systems, because the United States is capitalist and Union of Soviet Socialist Republics is Socialist