Read the passage from "the tell-tale heart": i resolved to open a little --a very, very little crevice in the lantern. so i opened which best explains how this action provokes the speaker's decision to murder the old man? the old man becomes furious with the speaker for waking him up. the lantern illuminates the old man's eye, which enrages the speaker. the speaker wants to make sure the old man can see exactly who is killing him. the speaker needs light to be able to see the weapon with which he attacks the old man.

B) The lantern illuminates the old man's eye, which enrages the speaker.

Explanation: in "The Tell-Tale Heart", the narrator wants to kill the old man because he is terrified of his blue eye, so he starts to enter the old man's room every night, and lightly turning on a lantern, he verifies that he is sleeping. Until one night, he accidentally turns on the lantern violently and illuminates the old man's open eye, this enrages him and he kills him.

a term is used to describe a sudden revelation in a short story is "showing forth".