Which fact provides the BEST evidence to support the conclusion that Georgia's population expanded in a westward direction following the American Revolution?

A In 1733, the capital of Georgia was Savannah; by 1807 the state's capital was Milledgeville.In 1733, the capital of Georgia was Savannah; by 1807 the state's capital was Milledgeville.
B By 1840, whites made up 51% of Georgia's population, and slaves accounted for 41% of the total.By 1840, whites made up 51% of Georgia's population, and slaves accounted for 41% of the total.
C In 1790, the United States held its first census to compile an accurate count of the nation's population.In 1790, the United States held its first census to compile an accurate count of the nation's population.
D The few navigable waterways in Georgia generally ran north to south; to get products to riverside docks and move east to west, overland transportation was needed.

D The few navigable waterways in Georgia generally ran north to south; to get products to riverside docks and move east to west, overland transportation was needed.