This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolic Disorders of Bone, Subject name: Orthopaedics
[{'content': 'Genu recurvatum is seen in: \nSelect and explain. \nA. Rheumatoid ahritis, B. Poliomyelitis, C. Rickets, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Genu Recurvatum or hyperextension of knee is seen in: Trauma R.A Rickets Poliomyelitis Charcots Congenital (Due to Intrauterine positioning) - self resolving', 'role': 'assistant'}]