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': 'Rigor mois completely develops in: Bihar 10 \nSelect and explain. \nA. 1-2 h, B. 3-6 h, C. 6-8 h, D. 10-12 h', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. 10-12 h', 'role': 'assistant'}]