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': "Pringle's Maneuver is used to stop the bleeding from \nSelect and explain. \nA. Liver, B. Spleen, C. Kidneys, D. Flail chest", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Pringle maneuver is soft clamping hepatic artery and portal\nvein at the point of entry. It is done for liver trauma patients.', 'role': 'assistant'}]