Answer:
B. It indicates that tenements were closely connected to the evil that people do.
Explanation:
In paragraph 2, the effect of noting that the first tenement in New York "bore the mark of Cain from its birth" was that it indicates that tenements were closely connected to the evil that people do.
It is a direct allusion to the biblical Cain who was evil and killed his brother.
A fact can be proven true, but an opinion cannot.
I think b is the correct answer
It means Syllables
Syllables is the answer