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': 'TIPSS involves percutaneous creation of a shunt between - \nSelect and explain. \nA. Portal vein and vena cava, B. Portal vein and hepatic vein, C. Hepatic vein and vena cava, D. Portal vein and hepatic artery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]