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 fibers of parotid pass through: 
Select and explain. 
A. Facial nerve, B. Glossopharyngeal nerve., C. Hypoglossal nerve., D. Auriculotemporal nerve.
B: Glossopharyngeal nerve.
Answer: B: Glossopharyngeal nerve. 
Explanation: None