In the example of the war between Vietnam and United States, which of the following statement is true?

A、Vietnamchoseacompetitivepositionintheconflict.;
B、Vietnamchoseavoidancepositionintheconflict.;
C、Vietnamchosecompromisepositionintheconflict.;
D、Vietnamthoughttheoutcomestakeisnotlargeinthiswar.