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: Unknown
[{'content': 'First internal organ to putrefy: \nSelect and explain. \nA. Heart, B. Brain, C. Kidney, D. Prostrate', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref. Textbook of forensic medicine. Krishnan Vij. Page. 94\n\xa0\nPutrefaction\nIn the above answer is Brain', 'role': 'assistant'}]