Answer:
Um, where are the other answer options? do you want us to check if your answer is correct?
Explanation:
If so, I think what you've said is correct, but.....
Step 1.
You could also mention how the contrasting political ideologies of the countries resulted in added tension. The Soviet Union was a communist dictatorship while the United States was a democracy. Both countries promoted negative views of the other country and other political system (resulting in the "Red Scare" or "McCarthyism" incident in the United States).
Step 2.
Another point could be that while the USSR and USA were political allies during WWII, the way they handled the aftermath of it differed - the USA (and Britain) set to work liberating countries in Western Europe from previous German control, encouraging them to hold democratic elections and become democratic and capitalist countries like themselves. On the other hand, the Soviet Union was suspicious of the West and established Soviet "puppet governments" in those countries in Eastern Europe that it 'liberated'. This group of Soviet-controlled Communist countries in Eastern Europe became known as the Eastern Bloc, and served as a buffer zone between the contrasting societies of the East and West (the Soviet Union was worried that the West would invade the USSR like Germany had done during the war, so wanted some protection against them).
Hope this helped :)
