I thinks it's b because it's the one that makes the most sense
Think of it as a less formal essay, in narratives, there are no boundaries in what you are writing because it's more personal to you. It's sort of like a free-write.
I would say "personification" and it seems to be used in the following passages, "joy whose hand is ever at his lips, and bidding adieu", "turning to poison while the bee-mouth sips"," Veil'd melancholy has his sovran shrine" and finally " his soul shall taste the sadness of her might". So joy is personified as being a hand at lips, the mouth like a bee (local simile) that sips, melancholy is like a person that has his shrine, and a soul can taste sadness.
I get a serious vibe. I really hope this guides you to the right answer c;
<span>The answer is:
B.The idea that people can escape their backgrounds</span>
