Answer:
Thomas Jefferson was vice president to John Adams. Aaron Burr was vice president to Thomas Jefferson.
The correct answer is B) gave the government too large a role in the economy.
The main reason Democrats opposed the American system gave the government too large a role in the economy.
We are talking about the idea of Senator Henry Clay to implement the "American System." The Democrats totally opposed his project because they considered that the system gave the federal government a big role and more power to intervene in the American economy.
Clay's American System included a special tariff that aimed to over-protect the industry of the United States, federal subsidies to improve the American infrastructure such as roads and public services, and the creation of a national bank to impulse trade.
Generally speaking, they kept their forts in "Ohio Valley" after, since much of the land was still contested from the Treaty of Paris.