She could not believe that such a violent (or vile) act would be committed.
The correct answer is "The grandmother represents old southern culture in the story because she is racist, selfish and evil but appears to be a good southern lady on the outside". "A Good Man Is Hard to Find," first published in 1953, is one of the most Flannery O'Connor's famous stories. O'Connor was a staunch Catholic, and like most of her stories, "A Good Man Is Hard to Find" are about good and evil and the possibility of divine grace. The grandmother gives great importance to being "a lady," and her ideas about what that means reflect an old-fashioned, somewhat upper-crust Southern mindset. All end up in her to associate being "good" with coming from a respectable family and behaving like a member of her social class.
To compel the audience to think about the actions of anarchists and urge wealthy Indians to act instead of merely talking about poverty is the goal of the author's use of Hypophora. Hypophora is a figure of speech where the author raises a question, and then immediately provides an answer to that question.
"Everything that was said to me I seemed to have heard before, and I could no longer listen. I could no longer sit in little bars near Grand Central and listen to someone complaining of his wife’s inability to cope with the help while he missed another train to Connecticut."
I'd say that the one of the commas are not needed in the sentence, and that there is no period towards the end of the sentence.
But I may be wrong, since I haven't learned too much of nonresective or nonessential phrases.