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': 'Pralidoxime is ineffective in case of which poisoning \nSelect and explain. \nA. Organophosphorous, B. Carbaryl, C. Both, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Refer kDT 6/e p 105 Carbaryl is a chemical in the carbamate family used chiefly as an insecticide.', 'role': 'assistant'}]