The option that BEST describes the roles of Tomochichi and Mary Musgrove when James Oglethorpe established Georgia and the city of Savannah is:
D) Tomochichi provided leadership to the Yamacraw tribe and built positive relations with Oglethorpe, while Musgrove served as translator to improve communication.
Tomochichi was a leader of the Yamacraw people who helped foster a peaceful relationship between the Native Americans and the new settlers, and Mary Musgrove played a crucial role as a translator and mediator between the two groups.