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': 'Acute fluoride toxicity is seen at \nSelect and explain. \nA. 5 mg, B. 5 grams, C. 5.5 mg, D. 55 grams', 'role': 'user'}, {'content': 'Answer: B \nExplanation: - 5.0 grams – in AIPG\n- 2.2 grams – in PGI', 'role': 'assistant'}]