How Did the Electric Streetcar Affect the Urban Environment

How did the electric streetcar affect the urban environment?

A) Cities could expand as even people of modest means could travel quickly and cheaply to new, improved, and less congested housing.
B) The wealthy and middle classes could isolate themselves since the streetcar was too expensive for the poor.
C) Urban dwellers adopted the practice of returning home for lunch, diminishing the sense of attachment one felt to the workplace environment.
D) Cities abandoned efforts to control urban growth as the boundaries of cities expanded.