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': 'What is the recommended daily dose of fluoride for the 3 to 12 years old child? \nSelect and explain. \nA. 1/4 mg, B. 1/2 mg, C. 1 mg, D. 2 mg', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]