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: Orthopaedics
[{'content': "Most common fracture in elderly \nSelect and explain. \nA. TCNF, B. Colle's fracture, C. IT fracture, D. Supracondylar fracture", 'role': 'user'}, {'content': "Answer: B \nExplanation: Colle's fracture is the most common fracture in person over 40 years.", 'role': 'assistant'}]