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
During Tonsillitis, pain in the ear is due to involvement of? 
Select and explain. 
A. Vagus Nerve, B. Chorda tympani Nerve, C. Glossopharyngeal Nerve, D. Hypoglossal Nerve
C: Glossopharyngeal Nerve
Answer: C: Glossopharyngeal Nerve 
Explanation: ANSWER: (C) Glossopharyngeal NerveREF: BDC Vol 3 page 219Tonsillitis/Pharyngitis may cause referred pain in the ear as Glossopharyngeal Nerve is the common sensory supply"