Final answer:
Following the American Revolution, wealthy planters in the Lowcountry and the Upcountry were most likely to agree that they should maintain their social and economic dominance in the newly formed United States.
Step-by-step explanation:
Following the American Revolution, wealthy planters in the Lowcountry and the Upcountry were most likely to agree that they should maintain their social and economic dominance in the newly formed United States. These planters, who owned large plantations and relied on slave labor, sought to preserve their wealth and power. They were influential in shaping the direction of the new government and protecting their own interests, often at the expense of marginalized groups such as slaves and Native Americans.