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': 'The most common type of supracondylar fracture is \nSelect and explain. \nA. Neutral, B. Flexion, C. Extension, D. Lateral', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Extension', 'role': 'assistant'}]