Answer:
C. If the federal government could levy tariffs, then other policies that affected the states, such as abolishing slavery, could be next.
Step-by-step explanation:
The options for this question are:
A. They cut down on competition for foreign goods.
B. They helped expand roadways needed to develop the West.
C. If the federal government could levy tariffs, then other policies that affected the states, such as abolishing slavery, could be next.
D. They required participation by a nongovernment agency.
E. They were unconstitutional.
Robert Y. Hayne was an Attorney General for south Carolina from 1818 to 1822, he alongside 80% of the delegates voted against the tariffs and nullified them for almost a decade, the importance of this was that the federal power was not yet clear, and the country was debating between being a strong centrla federal government or have a more state centered policy where the States could nillify any federal policies, so by nullifying the tariffs they tried to set an statement for future federal policies, like slavery, if they let the tariffs happend they´d be giving the federal governemnt power to instaurate other policies.