Answer:
C The Nullification Crisis
Step-by-step explanation:
The proclamation excerpt is referring to the Nullification Crisis, a political conflict between the federal government and the state of South Carolina in 1832-1833 over the issue of tariffs and states' rights. During the crisis, South Carolina threatened to nullify or declare void a federal law, which President Andrew Jackson opposed as being incompatible with the Constitution and the existence of the Union.