This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Toxicology - 1, Subject name: Forensic Medicine
[{'content': "Which is not a chemical antidote \nSelect and explain. \nA. Lugol's iodine, B. Tannic acid, C. B.A.L, D. Weak vegetable acids", 'role': 'user'}, {'content': "Answer: C \nExplanation: Chemical antidotes: - Lugol's iodine - Tannic acid - Weak vegetable acids - Weak non carbonate alkalis - Potassium permanganate B.A.L - chelating agent", 'role': 'assistant'}]