Which information is important to include in notes for an essay on ways the United States fought the Cold War?

O The speech was delivered on March 12, 1947.
O The British stopped giving aid to Greece and Turkey
on March 31, 1947.
O Truman asked Congress to give aid to Greece and
Turkey to stop the spread of communism.
O The Truman Doctrine was part of a speech that was
delivered to a joint session of Congress.