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: Social & Preventive Medicine
[{'content': 'The safe limit of Fluorine in drinking water is ? \nSelect and explain. \nA. 0.2-0.5 mg/L, B. 0.5-0.8 mg/L, C. 0.8-1.2 mg/L, D. 1.2-2.0 mg/L', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 0.5 - 0.8 mg/L o The recommended level of fluoride in drinking water in the country is accepted as 0.5 to 0.8 mg/ Liter, -Park o Maximum permissible limit is 1.5 mg/Lit.", 'role': 'assistant'}]