The correct response is: The repetition emphasizes the narrator’s growing frustration and helplessness as he faces the raven’s inscrutable nature, creating an eerie, unsettling atmosphere.
In "The Raven," the repeated mention of the raven’s actions—specifically "Perched, and sat, and nothing more"—highlights a sense of inevitability and stagnation. The structure reflects the narrator's spiraling emotions as he grapples with the bird's silent presence, which embodies his grief and existential despair. This repetition reinforces the tension and frustration felt by the narrator, as his desire for answers conflicts with the raven's inscrutable nature, ultimately deepening the poem's haunting atmosphere.