C, I think. A looks good, but B is missing a comma.
Answer: At this point, he is curious and excited.
Explanation: While there is sadness (as he is coming from a time that was the worst in his life), he can't help but be a little excited at what is to come. This is new hope, new adventure, new life. While he has adapted quickly to his surroundings, he can't help but wonder what is yet to come.
