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': 'Scab or crust of abrasion appears brown in: PGI 11 \nSelect and explain. \nA. 12-24 h, B. 2-3 days, C. 4-5 days, D. 5-7 days', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. 2-3 days', 'role': 'assistant'}]