Which of the following accurately describes the sequence of events that led to U.S. involvement in Vietnam?
A. The United States supported Vietnamese goals for independence with troops, but then backed off and supplied only advisors; after a U.S. destroyer was attacked, it sent troops.
B. The United States first sent only aid and military advisors to assist the South Vietnamese in their struggle; however, after a U.S. warship was torpedoed, the U.S. sent troops.
C. The United States backed the government of Ho Chi Minh, then supplied military advisors and weapons; after a U.S. destroyer was attacked, it sent troops.
D. The United States sent special troops to train guerrilla solders, who fought with the Viet Cong in the jungles; after a U.S. destroyer was attacked, much larger numbers of troops were sent.