The correct answer is B) President Kennedy sent U.S. military advisers to aid South Vietnam in its attempts to subdue the Vietcong.
The statement that explains how the United States involvement in Vietnam began is “President Kennedy sent U.S. military advisers to aid South Vietnam in its attempts to subdue the Vietcong.
On December 14, 1961, President John F. Kennedy announced that the United States was going to increase the amount of help to South Vietnam. General Maxwell D. Taylor recommended the President to increase the support after a trip to Saigon. The United States wanted to prevent the spread of Communism in that region of the world.