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
Preganglionic parasympathetic fibres travel to otic ganglion from: 
Select and explain. 
A. Facial nerve, B. Glossopharyngeal nerve, C. Trigeminal nerve, D. None of the above
B: Glossopharyngeal nerve
Answer: B: Glossopharyngeal nerve 
Explanation: None