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
The nerve supply of middle ear 
Select and explain. 
A. Tympanic plexus, B. Facial nerve, C. Glossopharyngeal nerve, D. Trigeminal nerve
A: Tympanic plexus
Answer: A: Tympanic plexus 
Explanation: Tympanic branch supplies innervation to the medial surface of the tympanic membrane,tympanic cavity,mastoid air cells and the bony eustachian tube. Reference- Dhingra 6/e,p 8.