German submarines began sinking unarmed and unresisting merchant and passenger ships without warning a in a last-ditch effort to win the war b in protest of the British Blockade of Germany c when the United States entered the war d in an effort to keep the United States out of the war

Why were the precedents washington set important to future presidents? a. they were things that would never happen again. b. they set the standard for how future presidents should behave as president. c. they were things to avoid.d. they were expensive and had to be paid for by future presidents.