Final answer:
In 'The Tell-Tale Heart,' the narrator argues his sanity based on his careful planning and execution of the murder and his heightened senses. However, his obsession and ultimate confession undermine his claims.
Step-by-step explanation:
In the short story 'The Tell-Tale Heart' by Edgar Allan Poe, the narrator attempts to argue that he is not insane. He frames his argument by emphasizing his careful planning and execution of the murder, claiming that only a sane person could have carried out such a methodical act. He also provides evidence of his own sanity by recounting his heightened senses and logical thinking. However, his argument is weakened by his obsession with the old man's eye and his inability to comprehend the irrationality of his actions. Additionally, his confession at the end of the story undermines his claims of sanity, as it proves that he is aware of the wrongfulness of his actions.
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