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: Radiology
[{'content': 'Floating teeth is seen in: \nSelect and explain. \nA. Hyperparathyroidism, B. Hypoparathyroidism, C. Rickets, D. Scurvy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Hyperparathyroidism', 'role': 'assistant'}]