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': 'Watson Jones operation is done for- \nSelect and explain. \nA. Polio, B. Muscle paralysis, C. Neglected clubfoot, D. Chronic ankle instability', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Watson Jones operation is done for chronic ankle instability.\nNote : Watson Jones approach (not Watson - Jones operation) is used for hip surgeries.', 'role': 'assistant'}]