Question

In American cities, __________ played the largest role in allowing many residents to have the freedom to live farther away from their jobs.
A.
flight networks
B.
automobiles
C.
central business districts
D.
streetcars

Answer 1

B. automobiles

Automobiles (along with the growth of roads and highways) gave people flexible, personal mobility and enabled large-scale suburbanization and commuting much more than streetcars or other options.