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': 'Pringle maneuvar to arrest hehemorrhage is \nSelect and explain. \nA. Clamping of poal vein, B. Clamping of hepatic aery, C. Clamping of hepatic vein, D. Clamping of hepatoduodenal ligament', 'role': 'user'}, {'content': "Answer: D \nExplanation: Pringle manoeuvre is used to control hemorrhage by clamping the hepatoduodenal ligament and compressing the poal triad,thereby reducing aerial and venous inflow into the liver.But it doesn't control the backflow from inferior vena cava and hepatic veins. Reference: Bailey & Love's sho practise of surgery,25 th edition,page no348.", 'role': 'assistant'}]