After the 1972 Election,President Richard Nixon,to Prompt a Peace Settlement

After the 1972 election,President Richard Nixon,to prompt a peace settlement with North Vietnam,

A) evacuated the American embassy in Saigon.
B) broke off diplomatic negotiations with North Vietnam.
C) withdrew American forces as North Vietnamese troops left from the South.
D) allowed the opening of North Vietnamese harbors.
E) ordered an increase in the aerial bombing of North Vietnam.