Why is Atlanta, Georgia, known as the transportation hub of the Southeast?

A.

Georgia's state government has increased spending on Atlanta's transportation systems to try to catch up to other southeastern states.
B.

Atlanta is home to one of the busiest airports in the nation due to the city's proximity to other major commercial centers.
C.

Georgia's thousands of miles of railroads handle a greater volume of cargo than any other form of transportation in the Southeast region.
D.

Atlanta is a thriving port city that handles the majority of the commercial goods that enter the state via container ships.

B. Atlanta is home to one of the busiest airports in the nation due to the city's proximity to other major commercial centers.