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': 'Vitreous humor is preserved in suspected poisoning with: FMGE 08 \nSelect and explain. \nA. Carbon monoxide, B. Anthrax, C. Alcohol, D. Morphine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Alcohol', 'role': 'assistant'}]