The Easter offensive was begun by U.S and South Vietnamese forces.
Option: D
Step-by-step explanation:
Easter offensive is also known as 1972 spring summer offensive. It was literally a military campaign done by army of Vietnam. The main goal of Easter offensive was to capture South Vietnam and reunited it with North Vietnam. For this war defense force of Vietnam struggled a lot.
In 1972 North Vietnam launched Easter offensive. North Vietnamese attacked military force of South Vietnamese by utilizing their full power. In a critical moment later U.S force helped them to stop or fight against air power.