SAT US History Practice Question

Although Congress had not declared war, President Truman sent U.S. armed forces to aid South Korea-an action he believed the he was empowered to take based on

1. A.powers granted presidents in the United Nations Charter.
2. B.a joint resolution of Congress.
3. C.a constitutional power of the presidency.
4. D.a special U.S. treaty with South Korea.
5. E.the U.S. commitment under the NATO agreement.