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': 'Superior wall of middle ear is formed by ? \nSelect and explain. \nA. Tympanic membrane, B. Jugular bulb, C. Tegmen tympani, D. None', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Tegmen tympani Roof (superior wall) of middle ear is formed by tegmen tympani.", 'role': 'assistant'}]