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': 'Non-neoplastic lesions simulating bone tumour are all except? \nSelect and explain. \nA. Fibrous dysplasia, B. Bone island, C. Bone infarct, D. Hurler syndrome', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Fibrous dysplasia, bone island and bone infarct are the non-neoplastic conditions which may simulate a primary bone tumour.', 'role': 'assistant'}]