What was the Truman Doctrine?

the speech Truman gave Congress in which he recognized the threat Stalin posed

the U. S. policy that refused aid to any country threatened by communism

the U. S. policy that guaranteed aid to any nation threatened by communism

the idea that communism would never be able to spread beyond Asia and Eastern Europe

the U.S. policy that guaranteed aid to any nation threatened by communism

Explanation:

The Truman Doctrine was an American foreign policy whose stated purpose was to counter Soviet geopolitical expansion during the Cold War.

both include an amendment process.

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.