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': 'The type of bone present in the labial area of anterior teeth is \nSelect and explain. \nA. Cortical, B. Cancellous, C. Osteophytic, D. Exophytic', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]