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': 'Sealant programme is done to: \nSelect and explain. \nA. All individuals in fluoridated and non fluoridated areas, B. Young and adolescent in non fluoridated areas, C. Only children in non fluoridated areas, D. It is not necessary in children living in fluoridated area', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]