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': 'Not true about subtrochanteric fracture \nSelect and explain. \nA. Russel and Taylor classification, B. Proximal fragment shows flexion deformity, C. Treated with Smith Peterson nail, D. Shows abduction deformity', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Treated with cephalomedullary nail.\nFemur neck fracture is treated with Smith Peterson nail.', 'role': 'assistant'}]