I am pretty sure that these lines convey a conversational and inquisitive tone, because there areseveral of rhetorical question which are being mention in very moving speech. That's why I consider B as the correct option, hope it helps!
D.) to emphasize if "you" are coming to the tree.
Explanation:
the quote is saying to hold unto your dreams
if you let your dreams die, they'll be as broken as a bird that cannot fly. It can be viewed in someone s life as to believing and achieving your dreams potential, if you doubt or deny it you'll be broken and hopeless.
Once our body has accepted death then our minds and bodys free up and we are able to do things that we were not able to do before like sky dive, climbing a mountain, ext.... we can be who we truly are and not be scared to have fun in our life.... hope this helps :)