C. "Dissatisfied with my fortune, of course I could not be; but it is possible that I may have been, without quite knowing it, dissatisfied with myself."
Explanation:
This excerpt shows how Pip should be satisfied with what he has and happy with his high expectations, but he is not. This lack of happiness is not in relation to the goods that he has or will have, but it is in relation to himself. He is going through some internal conflict that is making him unhappy and melancholic. he is a person who has everything but feels like someone who has nothing because of his dissatisfaction with himself.
I think The end of the book refers back to the beginning, and what the author is trying to tell us is that it is Ponyboy who is the fictional writer of the story. For his English assignment, Ponyboy wrote the theme, or story, The Outsiders..