Which of the following are the two main roles in a market? a. marketer b. seller c. shareholder d. buyer e. manager

i believe it is the buyer, because they own the business, and the manager, because if the manager doesn't do their job, the whole business could go down.

Explanation:

After World War II and at the beginning of the Cold War, the United States  established a policy of containment to prevent the spread of communism outside of Eastern Europe.

This foreign policy principle was called the doctrine of containment. It was promoted in 1946-47 by an American diplomat called George Kennan, before being championed by President Harry Truman. It came as a response to the Soviet Union's attempts to extend its influence in Europe and Asia, because the United States and the rest of the Western world viewed this as a threat to international security.

One of the measures taken to stand against communism was the creation of the North Atlantic Treaty Organization (NATO), a military alliance which ensured that all members would defend one another against the Soviet menace.