During the American Revolution, most of the loyalists in South Carolina came from the Upcountry.
Option C
Step-by-step explanation:
Loyalists were the people who supported the British Crown and stayed loyal to them during the American Revolution. South Carolina had most of the loyalist population during the revolution who were ready to fight against the American Patriots.
Most of the loyalists of "South Carolina" were from the Upcountry. The upcountry has a population of traders whose trade and profit was completely based on British rule. Most of them were not loyalists from the beginning but to save their trade and profits they turned against the American Patriots.