This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
[{'content': 'Oxime is not useful in case of which poisoning \nSelect and explain. \nA. Parathion, B. Carbaryl, C. Malathion, D. Phosmet', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref:HL Sharma 3rd ed pg no: 147 oximes are cholinesterase reactivators- not used in carbamate poisoning like carbaryl, propoxur as anionic site of ACHE is not free they can be used for OP poisoning', 'role': 'assistant'}]