Answer: I would contend that the right answer is actually the B) Consonance.
Explanation: Just to elaborate a little bit on the answer, it can be added that the quote provides the best example of consonance because it involves the repetition of similar consonant sounds - huge, sponges, growth, height, and light. Options A and C are incorrect, since alliteration involves the repetition of the first consonant sound in a series of words, and onomatopoeia is the naming of a thing imitating the sound that is associated with it (i.e. buzz). The quote does feature rhyme, or the repetition of words at the end of each sentence that sound similarly ("height" and "light"), but the quote does not provide the best example of that device.