He maintain power by being the best
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.
The silk road gave people new places to explore and new things to trade. The silk road boosted trade.
Machine guns, poison gas, tanks!
