What caused President Harry Truman to propose what became known as the Truman Doctrine?
A. The doctrine was first proposed to help Greece and Turkey battle communist forces seeking to gain control of their governments.
B. The doctrine was first proposed to help communist governments contain the spread of democracy.
C. The doctrine was first proposed to help the United States remain isolated from foreign affairs in which America had no political interest.
D. The doctrine was first proposed to help the government of Great Britain resist a communist takeover by the Soviet Union.