Respuesta :
Answer:
Some evidence that the narrator of "The Tell-Tale Heart" is insane is his fragmented speech and agitated tone. The narrator's conceived questionable motive for killing the old man is also concerning, as is the brutality of his crime. The narrator's claim that he has supernatural hearing and his continual insistence that he is sane is further evidence that he is insane.
It is very unlikely that neighbors would be able to hear the old man’s heartbeat. This reveals the narrator’s paranoia and it is this paranoia that propels him to kill the old man because he does not want the neighbors to hear the heartbeat.