Answer :
D, during the Cold War, when the Truman Doctrine was made, the US's international policy was containment, keeping Communism in and not letting it spread
D. To keep communism from spreading into more countries
The Truman Doctrine was a policy of containment, it wanted to contain communism to the countries it was already in. So it established that the US would intervene and help democratic countries that were under threat from communist forces.
The Truman Doctrine was a policy of containment, it wanted to contain communism to the countries it was already in. So it established that the US would intervene and help democratic countries that were under threat from communist forces.