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 incisal edge edge of maxillary central incisor in a 21 year old man is chipped off during a fall. He is informed that the tooth will erupt a little. This compensatory tooth movement is because of increased deposition of \nSelect and explain. \nA. Dentin, B. Pulp, C. Cementum, D. Periodontal ligament', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]