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': 'Distance from Olecranon in amputation should be \nSelect and explain. \nA. 5-10 cm, B. 10-25 cm, C. 15-20 cm, D. 20-30 cm', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. 15 - 20 cm Type of Amputation Traditional Length of StumpAbove knee 12 cmBelow knee 14 cmBelow Elbow 18 cmQAbove Elbow 20 cm', 'role': 'assistant'}]