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': 'Loss of Lamina dura is observed in \nSelect and explain. \nA. Hypothyroidism, B. Hypo Parathyroidism, C. Hyperthyroidism, D. Hyper Parathyroidism', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]