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 prevention of emergence or development of risk factors in countries where they have not appeared is what type of prevention? \nSelect and explain. \nA. Primary, B. Secondary, C. Tertiary, D. Primordial', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Primordial prevention:\xa0\nPrimordial prevention is the prevention of the emergence or development of risk factors in countries or population groups in which they have not yet appeared.\nSoben Peter\xa0\nEssentials of preventive and community dentistry\xa0\n4th edition', 'role': 'assistant'}]