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
Sensory supply of middle ear is provided by 
Select and explain. 
A. Facial, B. Glossopharyngeal, C. Vagus, D. Trigeminal
B: Glossopharyngeal
Answer: B: Glossopharyngeal 
Explanation: Tympanic plexus provide the nerve supply It is formed by Tympanic branch of glossopharyngeal nerve Sympathetic fibres from plexus around the internal carotid aery Reference-Dhingra 6/e, p 8.