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': 'Putrefaction is delayed in poisoning due to : \nSelect and explain. \nA. Carbolic acid, B. Organophosphorus, C. Lead, D. All', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Carbolic acid', 'role': 'assistant'}]