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
Tympanic plexus is formed by- 
Select and explain. 
A. Tympanic branch of glosopharyngeal nerve, B. Vagus nerve, C. Gacial nerve, D. Mandibular nerve
A: Tympanic branch of glosopharyngeal nerve
Answer: A: Tympanic branch of glosopharyngeal nerve 
Explanation: A i.e. Tympanic