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 cells of the dental pulp which are responsible for the deposition of reparative dentin are: \nSelect and explain. \nA. Osteoblasts, B. Odontoblasts, C. Ameloblasts, D. Osteocytes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]