The correct answer would be C. Throughout the novel Timothy tries to teach Phillip to independent. He tries to impart to him all the skills he would need to survive alone, without him in case something happens to him. Here Phillip is shown to take matters into his own hands and that Timothy was successful in teaching him to survive.
"dependency reversal in noun-attributive constructions" (DNRA) is used to refer to possessive-like attributive constructions (of the type (that) idiot of a doctor), with the attribute surfacing as the formal head and the semantic head surfacing as the formal possessor.
