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: Dental
[{'content': 'Alveolar bone proper is also known as:\n(or)\nAlveolar bone proper is seen as lamina dura in an\nIOPA radiograph \nSelect and explain. \nA. Lamina lucida, B. Lamina densa, C. Lamina propria, D. Lamina dura', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]