This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Tegmen tympani separates middle ear from: \nSelect and explain. \nA. Anterior cranial fossa, B. Posterior cranial fossa, C. Middle cranial fossa, D. Superior cranial fossa', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. (c) Middle cranial fossaReft Dhingra's ENT 6th edj 5* Roof of middle ear is formed by tegmen tympani, a very thin plate of bone.* It separates middle ear from middle cranial fossa.", 'role': 'assistant'}]