What were the main ways that migration changed colonial South Carolina? Choose two correct answers.
A. Settlers from colonies in the north moved into the Backcountry region.
B. Planters from coastal areas migrated into the Piedmont to establish cotton plantations.
C. Spanish from Florida migrated northward to settle in unoccupied areas.
D. American Indians from the foothills moved to Appalachia to find new hunting grounds.