[单选题]Extract 1I think I could turn and live with animals I think I could turn and live with animals, they are so placid and self-contain’d,I stand and look at them long and long. They do not sweat and whine about their condition,They do not lie awake in the dark and weep for their sins,They do not make me sick discussing their duty to God,Not one is dissatisfied, not one is demented with the mania of owning things,Not one kneels to another, nor to his kind that lived thousands of years ago,Not one is respectable or unhappy over the whole earth.So they show their relations to me and I accept them,They bring me tokens of myself, they evince them plainly in their possession.…A gigantic beauty of a stallion, fresh and responsive to my caresses,Head high in the forehead, wide between the ears,Limbs glossy and supple, tail dusting the ground,Eyes full of sparkling wickedness, ears finely cut, flexibly moving.His nostrils dilate as my heels embrace him,His well-built limbs tremble with pleasure as we race around and return.(Walt Whitman Song of Myself) What are the prominent features of the poem？

A.The absence of constrast between human life and that of animals.
B.The use of parallelism and repetition.
C.The shifts of focus from sight to hearing.