This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': "Killian's dehiscence is found outpouching of: \nSelect and explain. \nA. Oropharynx., B. Nasopharynx., C. Laryngopharynx., D. Lateral nasal wall.", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]