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 a classification of fracture neck of femur \nSelect and explain. \nA. Garden's, B. Olebet, C. Pauwel's, D. Thompson's", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]