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
Superior wall of middle ear is formed by ? 
Select and explain. 
A. Tympanic membrane, B. Jugular bulb, C. Tegmen tympani, D. None
C: Tegmen tympani
Answer: C: Tegmen tympani 
Explanation: Ans. is 'c' i.e., Tegmen tympani Roof (superior wall) of middle ear is formed by tegmen tympani.