Read the following excerpt from the conditions of the working class in england by friedrich engels. which of the following best summarizes a major point from this excerpt?

manchester lies at the foot of the southern slope of a range of hills. . the town itself is peculiarly built, so that a person may live in it for years, and go in and out daily without coming into contact with a working-people's quarter . . sharply separated from the sections of the city reserved for the middle-class; . . below it on the river there are several tanneries which fill the whole neighbourhood with the stench of animal putrefaction. . the first court below ducie bridge . . was in such a state at the time of the cholera that the sanitary police ordered it evacuated, swept, and disinfected with chloride of lime.

the newly-built extension of the leeds railway, which crosses the irk here, has swept away some of these courts and lanes. . passing along a rough bank, among stakes and washing-lines, one penetrates into this chaos of small one-storied, one-roomed huts, in most of which there is no artificial floor; kitchen, living and sleeping-room all in one. in such a hole, scarcely five feet long by six broad, i found two beds — and such bedsteads and beds! — which, with a staircase and chimney-place, exactly filled the room. . this whole collection of cattle-sheds for human beings was surrounded on two sides by houses and a factory. .

a. manchester's people worked extremely hard to make sure the city remained clean.
b. manchester's working families benefited greatly from improved industrial technology.
c. manchester's population was divided into different neighborhoods based on economic class.
d. manchester's leaders hoped to oppress its working class to benefit factory owners.