Read this excerpt from Friedrich Engels’s The Condition of the Working Class in England.Every great city has one or more slums, where the working-class is crowded together. . . . The streets are generally unpaved, rough, dirty, filled with vegetable and animal refuse [trash], without sewers or gutters, but supplied with foul, stagnant pools instead.
A
Industrialization has created poor living conditions.B
Mass production has led to the birth of industrial cities.C
Steam-power machinery has destroyed the environment.D
Workers in cities need to try harder to improve their living conditions.