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: Forensic Medicine
[{'content': 'Gastric Lavage is contraindicated in poisoning: \nSelect and explain. \nA. Kerosene, B. Organophosphorus, C. Arsenic, D. Morphine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Kerosene', 'role': 'assistant'}]