How did airports encourage city growth?
A.
They promoted the building of hotels, restaurants, services, and rapid transit to accommodate travelers.
B.
They are so big and require so much land that they need a larger population to be sustained.
C.
They limit the effects of gridlock and make travel more pleasant.
D.
They were responsible for transporting over 13 billion tons of materials.
Please select the best answer from the choices provided.