This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lower Limb Traumatology, Subject name: Orthopaedics
[{'content': 'Tillaux fracture involves: \nSelect and explain. \nA. Lower end tibia, B. Upper end tibia, C. Lower end femur, D. Upper end femur', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Tillaux fracture Lower tibial epiphysis injury (anterolateral pa)', 'role': 'assistant'}]