Read this sentence from ten days in a mad-house.

miss grupe whispered to the demented girl, "here is the devil coming, go for him."

what impact does the author's use of the word demented have in the sentence?

it supports the impression that the author is an objective observer.

it implies that miss grupe is as disturbed as the girl.

it emphasizes the girl's mental distress.

it makes the author sound critical or mocking of the girl.