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': 'Dietary fluoride supplements should be provided to children if water fluoride ppm is \nSelect and explain. \nA. 0.6 ppm or lower, B. 0.7 ppm or lower, C. 0.8 ppm or lower, D. 1.0 ppm or lower', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The natural fluoride content of the water should first be determined. If the natural fluoride content\xa0is 0.6 ppm or higher, supplements should not be administered. If the fluoride content is below 0.6 ppm, the administration of fluoride should be considered.', 'role': 'assistant'}]