The Central Tenet of the Truman Doctrine Was That the United

The central tenet of the Truman Doctrine was that the United States would

A) make no attempt to increase its own territorial holdings, and would prevent any other country from trying to seize new land.
B) welcome European military intervention in the internal affairs of American countries that had proven themselves incapable of self-government.
C) work closely with European powers to extend the blessings of republican government throughout the Americas.
D) intervene in the affairs of American nations whose internal disorder threatened regional stability.
E) support those countries struggling to oppose communist expansion.