Third Person omniscient means that the narrator can not only hear the protagonists thoughts but also everyone else. Therefore the story can be told from may different perspectives. Hope it helped :)
Answer: C) The author proves that he's biased when he uses terms like "silly" and "stupid."
Explanation: The words "silly" and "stupid" are the only instances of evidence among the options, since they were taken directly from the text that is being discussed. The closest example of bringing the text's content into the discussion is in option C (stating what the author has expressed), but that option doesn't present any conclusion. Option A is presented as a personal opinion with a vague origin ("I feel") and option B tries to back the presented conclusion with an assumption ("the author obviously hates [...] fast food") instead of evidence.
Satrapi have said so many things regarding the disparity or the differences between the classes before and after the Iranian Revolution. Some of the parents were not allowing their sons or even maybe their daughter to come and attend the demonstration when Shah was taking control of everything.