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: Surgery
Which of the following is not a complication of radical neck dissection ? 
Select and explain. 
A. Carotid blow out, B. Frey’s syndrome, C. Shoulder dysfunction, D. Phernic nerve injury
B: Frey’s syndrome
Answer: B: Frey’s syndrome 
Explanation: Frey’s syndrome is a complication of parotid surgery.