I think the answer is D, he talks about his soul never being able to get back up again, that sounds hopeless. I thought maybe B, because he talks about his hopes flying based off of someone leaving him before. But, D sounds like it fits better to me.
The mood that these words help create is one of despair and difficulty. Clearly the narrator is struggling, he actually uses the words "difficult" and "struggling" clearly within his paragraph. Other words that contribute to this mood of despair are "fear", "faint", and "hungry". A person usually only feels these things and discusses them when they are in a place that is dangerous and that they have no real hope of getting out of.
Interrogative?
Hm. Maybe, and I'm not 100% certain, "Are you aware of it?"
Each of the following explains why the writing process is important except C. the writing process is an easy way for a teacher to grade your work.