What Did the Truman Doctrine Announce in 1947

Multiple Choice

What did the Truman Doctrine announce in 1947?

A) Intervention by the U.S.and France in the War in Vietnam.
B) The formation of North Atlantic Treaty Organization.
C) The formation of the Warsaw Pact and Iron Curtain.
D) The U.S.pledged to defend governments throughout the world from communism.
E) The U.S.intent to pursue war crimes trials against former Nazis.