I start looking for the screaming woman and finally figure out it 's coming from an apartment at the end . All the other neighbors are hiding behind their doors and the woman screaming is in the upstairs apartment . I go up there and knock . I yelled if everything was okay , if she needed the police .

Question: Why did the narrator knock at the door ?
Answer: None of the above choices .To see if the woman was home .To see if the apartment was clean .To see if the woman needed help .