I would love to answer but what are the answer options ? the question says which of the following
Answer:
A - the conclusion of the poem.
Explanation:
The poem effectively concludes with those lines. The shift in the poem's rhythm enhances the effect of the ending, emphasising the last rhymes.
For starters, its visit is the main theme of the poem. The raven visits and "talks" to the poet. Ravens also have vast symbolism in many cultures, from far northern to eastern ones, usually being connected to things like luck, fortune, sending messages, and similar.