Not familiar with what CER format is... but am familiar with the book Hatchet. I would say Brian matures through his new ability to have patience throughout the novel. The setbacks that would have immobilized the old Brian now he can manage it. He also learns how he can control his temper because he realizes how frustration and hopelessness doesn’t make it any better It just makes the situation worse.
He doesn’t play the guitar everyday.
The correct answer would be option D:"To show the narrator making the connection that he and his mother are abandoned like the thief's family", this is because the author says that he "saw myself and my mother", which means that he feels identified to the situation that the thief's mother and sister lived (being abandoned), enough so that he had a "deja vu" when living the experience for himself.
Option A is not correct because in no part of the excerpt does the author say that he has other family that is not his mother. Option B is not correct because there is only one narrator, not two. Option C is not correct because it never says that the town is deserted.
Answer:
I think it is the last one