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': 'All are true about diaphyseal Aclasia except \nSelect and explain. \nA. Is multiple hereditary exostosis, B. Autosomal recessive, C. Madelung deformity, D. Arise from metaphysis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]