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': 'Hyperbaric oxygen is given in the treatment of: Bihar 12 \nSelect and explain. \nA. Nerve gas, B. CO2 poisoning, C. HCN poisoning, D. CO poisoning', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. CO poisoning', 'role': 'assistant'}]