At the present moment in nearly every nation must choose between alternative ways of life. The choice is too often not a free one... I believe it must be the policy of the United States to support free peoples who are resisting attempted subjugation (overthrow] by
armed minorities or by outside pressures...If we falter in our leadership, we may endanger the welfare of our own nation.
President Harry S. Truman, March 12, 1947

What threat was President Truman referring to in the speech excerpt above?

A. Vietnamese resistance to the continuation of imperialism.

B. The spread of Communism to Greece and Turkey.

C. Communist infiltration in the U. S. State Department.

D. A regional war between India and Pakistan.