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': 'Lungs are preserved in - \nSelect and explain. \nA. Alcohol poisoning, B. HCN poisoning, C. Carbon monoxide poisoning, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Lung is preserved in gaseous poison (e.g. CO), alcohol, chloroform and cyanide (HCN) poisoning.', 'role': 'assistant'}]