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': 'Russel and Taylor classification is used for \nSelect and explain. \nA. Fracture Neck of femur, B. Subtrochanteric femoral fracture, C. Shaft of Tibia fracture, D. Humerus shaft fracture', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]