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 one of the following is NOT an approach to the health education ? \nSelect and explain. \nA. Regulatory approach, B. Service approach, C. Health education approach, D. Primary health centre facilities', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]