Which statement best describes the relationship between the narrative style and the genre of "The Tell-Tale Heart”?

The story is told by an excitable narrator whose insistence that he is sane is undermined by his actions and perceptions. This unreliable first-person style helps Poe explore irrationality and intense emotions, which suit the story’s horror genre. Choice B is less accurate because the main mystery is not who killed the old man; the narrator admits to the murder.

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