This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Forensic Toxicology - Concepts, Statutes, Evidence, and Techniques, Subject name: Forensic Medicine
[{'content': 'Post mortem staining of carbon monoxide poisoning is? \nSelect and explain. \nA. Deep blue, B. Bark brown, C. Bright red, D. Cherry red', 'role': 'user'}, {'content': 'Answer: D \nExplanation: ANSWER: (D) Cherry redREF: Medical toxicology by Richard C. Dart Page 386; Parikh 6th Edition page 8.40, 3.10 Postmortem staining:PoisoningStainingCarbon monoxideCherry redCyanideBright red/pinkBurnsBright redPhosphorousDark brownNitratesRed brown/brownH2SBluish greenOpiumBlackAnilineDeep blueAsphyxiaPurple/bluish violetSeptic abortionGreenish brownChloratesChocolate brown', 'role': 'assistant'}]