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': 'Brown Tumor is seen in - \nSelect and explain. \nA. Hypothyroidism, B. Hyperthyroidism, C. Hypoparathyroidism, D. Hyperparathyroidism', 'role': 'user'}, {'content': "Answer: D \nExplanation: Brown's tumor is seen in hyperparathyroidism", 'role': 'assistant'}]