Which technological advance contributed to the growth of suburbs in the late-nineteenth century?

Question

Responses
A new railroad linesnew railroad lines
B new skyscraper buildingsnew skyscraper buildings
C invention of the elevatorinvention of the elevator
D invention of the light bulb

Answer 1

A new railroad lines contributed to the growth of suburbs in the late-nineteenth century. The expansion of railroad networks made it easier for people to commute from outlying areas to city centers, leading to the development of suburban communities.