Domestic Criticism and the Excessive Costs of the War Led

Domestic criticism and the excessive costs of the war led President Johnson to:

A) withdraw from the 1968 presidential campaign.
B) withdraw troops from Vietnam and end the war.
C) ask China and the Soviet Union for assistance.
D) consider using a nuclear bomb to end the war.
E) get Ho Chi Minh assassinated in an attempt to make the Viet Cong surrender.