The correct answer is A) began a sustained bombing campaign.
To convince North Vietnam to stop reinforcing the Vietcong, President Johnson ordered Operation “Rolling Thunder” which began a sustained bombing campaign.
President Lyndon B. Johnson ordered Operation “Rolling Thunder” to To convince North Vietnam to stop reinforcing the Vietcong. The operation consisted in sustained bombing campaign by the U.S. Air Force, the Navy, and the Republic of Vietnam Air Force. The air raid bombing attack started in March 1965 and ended in November 1968. Those sad incidents were part of the Vietnam War.
The other options of the question were, b) put more American troops on the ground, c) involved seek and destroy missions to hunt down guerrillas, and d) increased the number of American advisers in South Vietnam.
