Answer:
Poe uses rhyme, assonance, and onomatopoeia to create a mournful mood in the excerpt.
Step-by-step explanation:
The repetition of the "o" sound in "groan," "floats," "throat," and "rust" creates a mournful and melancholy tone. The use of onomatopoeia with the word "groan" adds to the sense of sadness and pain. Additionally, the repetition of the sound of the bells in the poem creates a mournful atmosphere throughout the work. Overall, the use of rhyme, assonance, and onomatopoeia in this excerpt helps to create a mood of mourning and sadness.