Answer:
The correct answer is The poet repeats the word “perched” to show that the raven is threatening to the speaker.
Step-by-step explanation:
The raven arrives with an air of superiority, perching on a high place and watching the speaker.
This generates the mood of powerlessness from the speaker, who has no power over this raven. Whatever he does will not move it from there and it will continue to torment him with his words.