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': "Osteoporosis is seen in \nSelect and explain. \nA. Tumer's syndrome, B. Klinefelter's syndrome, C. Cushing's syndrome due to steroids, D. All of the above", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]