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': 'A body is brought for autopsy. On postmoem, there is dark brown postmoem staining and garlic odor in stomach. The poisoning is most likely due to: BHU 10 \nSelect and explain. \nA. Hydrocyanic acid, B. Carbon dioxide, C. Aniline dye, D. Phosphorus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Phosphorus', 'role': 'assistant'}]