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': 'What is the colour of post moem staining seen in carbon monoxide poisoning? \nSelect and explain. \nA. Deep blue, B. Bark brown, C. Bright red, D. Cherry red', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Post moem staining seen in carbon monoxide poisoning is cherry red colour. A cherry red colouration of skin, mucous membrane, conjunctiva, nail beds, areas of hypostasis, blood tissues and internal organs are seen in only 15 - 20% cases of carbon monoxide poisoning. Post moem staining in various poisons: ? In asphyxial death: Bluish violet or deep purple ? Potassium chlorate, bichromates, nitrobenzene and aniline: Chocolate coloured ? Phosphorus poisoning: Dark brown ? Bluish green: Hydrogen sulphide ? Bright red: HCN/Cyanide', 'role': 'assistant'}]