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 model in which dental care is seen as privilege with the professional dominant in practitioner-patient relations is \nSelect and explain. \nA. Commercial model, B. Guild model, C. Interactive model, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]