The correct answer is - The insane live in a reality of their own.
The narrator's reality isn't the same as the old man's reality - this is because the narrator is insane. However, he wasn't always insane - what drew him to madness is the old man's 'eye of a vulture.' He became fascinated with the eye, started hating it so much that he wanted to kill the old man, which he did. After that, his madness didn't go away - it just grew stronger until he admitted his crime.
One example of scanning is a Printer. You can scan something onto a flash drive and send it to a company, a teacher, or your friends.
I believe that the last option (As for this city's government, I don't want to say much, except that it is a shame – a shame; but if I should live twenty-five years longer . . . I think I'll see women handle the ballot.) correctly uses ellipsis to shorten Mark Twain’s words from the speech “Votes for Women”. I think that this answer looks most sensible and shows the main idea of the speech in the right form. The answer to your question is D. I hope that this is the answer that you were looking for and it has helped you.