Which statement about the historical importance of the Savannah River to the state of Georgia is correct?

a. Traders used it to ship wine and silk to the Port of New Orleans during the Trustee Period.

b. The river connected major cities to the Gulf of Mexico and was an important shipping route.

c. James Oglethorpe established Georgia's first city near the river during the eighteenth century.

d. The river allowed Georgians to easily travel and trade with colonists in the New England Colonies.