Which definition BEST explains the concept of "Vietnamization"

A) a military strategy by the allied forces to bring total war to both North and
South Vietnam

B )a diplomatic strategy pursued by the international community to reunite
North and South Vietnam

C) a political strategy by the Nixon administration to transfer military
responsibility from allied forces to South Vietnamese forces

D) a military and political strategy of the Chinese government to seize control
of Vietnam by forcing out the South Vietnamese forces
DET