Answer:
C
Explanation:
The nullification crisis was a conflict between the U.S. state of South Carolina and the federal government of the United States in 1832–33. ... Calhoun, who opposed the federal imposition of the tariffs of 1828 and 1832 and argued that the U.S. Constitution gave states the right to block the enforcement of a federal law.
B. Northwest ordinance of 1787
Answer: When war broke out in Europe in 1914 President Wilson declared that the United States would follow a strict policy of neutrality.
Explanation: Put simply the United States did not concern itself with events and alliances in Europe and thus stayed out of the war.
