In my opinion, the correct answer is A. celebratory. Not just because the poem begins with the famous incantation "I celebrate myself, and sing myself", but because its very purpose is the celebration of a personal and collective identity. He celebrates a nation, a universe, nature, sex, human bonds, love, pride. He celebrates himself as Walt Whitman, but also as an epitome of a human being, and an epitome of a new American spirit.
Your answer is B!
Hope this help even though its 2 weeks after when you needed your answer.
I think it’s going to be B
Because they might not explain it clearly or right ,they might go mad if you don't put the answer they told you,and they think their always right.