The President can choose to veto a law written by Congress. To which principle does this connect?

Aand c i believe is the answer bud

Germany began the 1930s with an extremely weak economy, but the nazis soon established adictatorship; as a result, the government could pursue militaristic policies without fear of opposition. bycontrast, japan entered the 1930s with a relatively strong economy but a divided government; manypowerful japanese officials opposed military expansion.