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': 'Which of the following anomalies occur during the initiation and proliferation of tooth development? \nSelect and explain. \nA. Amelogenisis imperfecta, B. Dentinogenesis imperfecta, C. Enamel hypoplasia, D. Oligodontia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Lack of initiation may result in oligodontia or anodontia.\nAbnormal initiation may result in supernumerary teeth.', 'role': 'assistant'}]