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': 'In CO poisoning, immediate emergency treatment: Jharkhand 10 \nSelect and explain. \nA. 5% CO2 inhalation, B. 10% CO2 inhalation, C. High flow O2, D. Nitroglycerine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. High flow O2', 'role': 'assistant'}]