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': 'Dark brown P.M. lividity is seen in: \nSelect and explain. \nA. Aniline, B. CO, C. Phosphorous, D. Hydrocyanide', 'role': 'user'}, {'content': 'Answer: C \nExplanation: c i.e. Phosphrous', 'role': 'assistant'}]