Answer the question about larray an vince and tell me the right answet

What sound device is used in the following excerpt from how the animals lost their tails and got them back traveling from philadelphia to medicine hat by carl sandburg

In what ways do “the lamb” and “the tyger” represent opposite sides of human existence? a. “the lamb” urges passive control, while “the tyger” glorifies man’s dominance over nature. b. “the lamb” urges meek acceptance, while “the tyger” glorifies nature and power. c. “the lamb” urges childlike faith, while “the tyger” glorifies man’s experience.

What is the meaning of 'aesthetic'?