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': 'Maggots are seen on the dead body after : \nSelect and explain. \nA. One day, B. 2-3 days, C. 3-4 days, D. One week', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. 2-3 days', 'role': 'assistant'}]