What major change to the indigenous peoples of the Georgia region took place after Hernando de Soto's arrival in 1540?
A. War broke out between the chiefdoms until they united against de
Soto.
B. Trade agreements with de Soto made the chiefdoms wealthy and
powerful.
C. New groups emerged after the collapse of the chiefdoms due to
European diseases.
D. The indigenous people abandoned the chiefdom system in favor
of European-style monarchy.