What reasons did the president give for justifying his claim of executive privilege?

because the vietnam war was fought in an especially brutal and untraditional way

apartheid, (afrikaans: “apartness”) policy that governed relations between south africa's white minority and nonwhite majority and sanctioned racial segregation and political and economic discrimination against nonwhites. people should not get this wrong. i was just answering a question.

the answer is a) high entry costs