How did WW2 contribute to the united states being involved in the cold war

As World War II transformed both the United States and the USSR, turning the nations into formidable world powers, competition between the two increased. Following the defeat of the Axis powers, an ideological and political rivalry between the United States and the USSR gave way to the start of the Cold War.

i believe the answer is a

after the roman empire, the catholic church began to unify by taking on many duties of a government.