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 cell free zone in pulp lies: \nSelect and explain. \nA. Above odontoblast, B. Below odontoblast, C. In radicular pulp, D. In pulp horn', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]