This is an example of an atomic structure. Hope this helps!
The obvious answer would be C. rhyme.
As you can see, each of these lines rhyme: sea rhymes with C, and me, and be. Those words sound similar, which means they rhyme. There are no metaphors (comparisons) and onomatopoeias (mimicking the sounds from nature) here, or alliterations (repetition of the same consonant) in this excerpt.
