How do lines 17-24 develop the theme? O The river's admiration for the ocean expresses that nature is unrivaled in its beauty.
O The river's brief stay in the ocean highlights that everything must change and evolve.
O The river's excitement upon reaching the ocean shows the reward of self-discovery.
The river's connection to the ocean shows that exciting events often occur
unexpectedly.

The most likely reason Frost includes assonance in these lines is to create pleasing sounds in the second line. Option C is correct.

Assonance is a literaty device which refers to the repetition of sounds produced by vowels within a sentence or phrase. In this light, assonance may be understood to be a kind of alliteration.

Assonance is the opposite of consonance, which entails the repetition of consonant sounds.