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': 'Dental anomaly of teeth associated with defective bone formation is seen in \nSelect and explain. \nA. amelogenesis imperfecta, B. dentinogenesis imperfecta, C. Odontodysplasia, D. Osteitis deformans', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]