The answer is b, modifiers
Letter A in my opinion, correct me if i happened to be sort of wrong... or wrong
Homophily (i.e., "love of the same") is the tendency of individuals to associate and bond with similar others, as in the proverb "birds of a feather flock together". The presence of homophily has been discovered in a vast array of network studies.
Amir feels unbearable shame for mistreating Hassan. Amir feels as though Assef has been diminished by his own darkness. They were both comparable characters who just chose opposite paths, which is reminiscent of the hero/villain narrative in the movies they loved to watch. To demonstrate how Amir is developing and becoming more self-aware, Hosseini shares this dream.