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
[{'content': 'Which one of the following is not a treatment of gastroesophageal variceal haemorrhage - \nSelect and explain. \nA. Sclerotherapy, B. Sengstaken tube, C. Transjugular intrahepatic portacaval shunt, D. Gastric freezing', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]