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: Medicine
[{'content': 'Osteoporosis is caused by ill except: \nSelect and explain. \nA. Sarcoidosis, B. Old age, C. Hypoparathyroidism, D. Steroid therapy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer is C (Hypoparathyroidism) : Osteoporosis is a feature of Hyperparathyroidism (not hypoparathyroidism).', 'role': 'assistant'}]