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': 'Autopsy of a case of cyanide poisoning shows all of the following features, EXCEPT: \nSelect and explain. \nA. Congested organs, B. Characteristic bitter lemon smell, C. The skin shows pinkish or cherry red colour, D. Erosion and hemorrhages in oesophagus and stomach', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cyanide poisoning is associated with a characteristic smell of bitter almonds and not of bitter lemon. Mechanism: Cyanide inhibits the action of enzymes such as cytochrome oxidase, carbonic anhydrase. It blocks the final step of oxidative phosphorylation and prevent the formation of ATP. Ref:The Essentials of Forensic Medicine and Toxicology By Dr KS Narayan Reddy, Pages 560-1', 'role': 'assistant'}]