The Industrial Revolution Made Cities Necessary, as a Large Number

The Industrial Revolution made cities necessary, as a large number of people had to be brought in to work in factories, but ever since then many people have found city life attractive. Why?

A) Cities offer a profound sense of security.
B) Cities bring people together and help to develop community.
C) Cities offer a high degree of personal freedom.
D) Cities help people develop deep and intense relationships.
E) Cities provide an opportunity for getting closer to nature