This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
[{'content': 'Most common type of tracheo-oesophageal fistula is \nSelect and explain. \nA. Type A, B. Type B, C. Type C, D. Type D', 'role': 'user'}, {'content': "Answer: C \nExplanation: Most common type of tracheo- oesophageal is type C, Atresia with distal Tracheo - oesophageal constituting 85%. Reference: SRB's Manual of Surgery, 6th Edition, page no= 794.", 'role': 'assistant'}]