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: Pathology
[{'content': 'Which of the following is a true neoplasm of functional\ncementoblasts \nSelect and explain. \nA. Periapical cemental dysplasia, B. Familial cemental dysplasia, C. Benign cementoblastoma, D. Hypercementosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]