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
Pharyngocutaneous fistula is seen in all expect ? 
Select and explain. 
A. Chemotherapy, B. Surgery, C. No wound care, D. Radiotherapy
A: Chemotherapy
Answer: A: Chemotherapy 
Explanation: Ans is 'a' ie. Chemotherapy