The answer is A. because when he says "And my would from out that shadow lies on the floor shall be lifted nevermore" he means when they died his soul died with them.
They give the poem more details and make it more coherent. Symbolism helps the reader connect to the poem more as well.
1) An energetic, entertaining, elated elephant.
2) A big, bad behaved buffalo.
3) A miniature, macho, magical monkey.
4) A large, lively, lethal lion.
5) A clean, crazy cobra.
6) A gregarious, gabby, giddy gorilla.
7) A cheerful, chunky, chubby cheetah.
8) A fallow, farrow falcon.
9) A pretty, peaceful panda.
10) A wild, warm wombat.
Hope this helps