This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'Treatment of Malignant tracheo-oesophageal fistula is \nSelect and explain. \nA. Oesophagotomy, B. Expanding metal stent, C. External beam radiation, D. Chemoradiotherapy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Malignant tracheo-oesophageal fistula is a sign of incurable disease. An expanding metal stent is probably the best treatment. (palliation)Ref: Bailey and Love 27e pg: 1095', 'role': 'assistant'}]