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': 'Calculus embedded deeply into the cementum appearing morphologically as cementum is: \nSelect and explain. \nA. Calculocementum, B. Pseudocementum, C. Intermediate cementum, D. Calculi', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]