The correct answer is C. The use of multiple narrators
C. assonance, because assonance is when two or more words close together repeat the same vowel sound but have different consonant sounds. In this case, the "ea" is repeated
To be honest, it could be A, b, or c. Although, she shouldn’t have to use earphones to drown out the noise when she could just go somewhere else. I would say A, only because she would be in a quiet place with no distractions. :)