What did the US & USSR need to do to prevent conflict between the two superpowers?

The use of policy of containment by the Americans in handling relations with Soviet Union

Explanation:

The conflict between the United States of America and the USSR was known as the cold war which lasted from 1947 to 1991.  Different forms of fighting took place in proxy wars, no form of military actions were seen between the two superpowers.  

The united states were more interested in ensuring free elections and free markets while the soviet union wanted political dominance of the communist party across boards.

The use of policy of containment by the Americans in handling relations with Soviet Union which inhibits the rigorous growth of soviet powers and communism all over the world would be a likely means of preventing the escalation of the conflict.

it's actually d for edge-nuity.