The novel doesn't have the names of each chapter, but I will give a title to all the chapters. This chapter was named “Who is my father?” because all the episode, Amir is talking about his father.
Baba builds an orphanage for children in Kabul because he became one of the richest merchants in this city. Amir sees Baba as the best father, but sometimes Baba only sees the world in black and white, for example, one day after the school they argue about a Mullah, a man who taught Amir in the school about Islam.
Amir was always learning things about Baba from other people, for instance, in the previous discussion, Baba said Amir: “There is no act more wretched than stealing”. The word steal was used referring to the assassin of the grandfather of Amir. In this discussion, we can deduce the great power that Baba had.
Finally, Amir listened a conversation of his father where he mentioned that Amir is not violent and probably he’ll never take over the business of Baba. Then, this could affect the growth of Amir, as consequence, this conversation causes an conflict with himself.