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: Anatomy
[{'content': 'Mesocaval shunt what incision approach is used \nSelect and explain. \nA. Midline, B. Paramedian, C. Subcostal, D. Chevron', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Mesocaval shunt A mesocaval shunt can be performed through either a bilateral subcostal or midline incision Midline incision is preferred Ref: Master of surgery 2007 Pgno : 1352', 'role': 'assistant'}]