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': 'Immediate stiffnes postmoem occurs in : \nSelect and explain. \nA. Cadaveric rigidity, B. Cadaveric spasm, C. Rigor mois, D. Algor mois', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Cadaveric spasm', 'role': 'assistant'}]