I would say the correct answer is that - <span>They suggest the narrator is not fully responsible for the outcome of his story.
If something is an accident, it usually means that nobody is at fault because it happened. So when the narrator says that it all happened by chance, it means that he had almost nothing to do with the outcome of his story and that it was fate to happen like that.
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In the book to kill a mockingbird, there's a dog that gets rabies and is walking down the street, the father ends up shooting it
Adjective, Hope this helps
