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': 'Incremental lines of Salter are found closer in: \nSelect and explain. \nA. Cellular cementum., B. Mixed fibers cementum., C. Acellular cementum., D. All of the above.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]