This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
Frey's syndrome is due to faulty regeneration of damaged nerve fibers. The sources of that injured nerve is 
Select and explain. 
A. hypoglossal nerve, B. trigeminal nerve, C. vagus nerve, D. glossopharyngeal nerve
B: trigeminal nerve
Answer: B: trigeminal nerve 
Explanation: .