This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Death and postmortem changes, Subject name: Forensic Medicine
[{'content': 'Cadaveric spasm involves - \nSelect and explain. \nA. Voluntary muscles, B. Involuntary muscles, C. Both voluntary muscles, D. Smooth muscles', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cadaveric spasm is the neurogenic contraction of group of voluntary muscles after death. It may be due to failure of chemical muscular relaxation or adrenocoical exhaustion. It is precipitated by emotional stress. Dr. Narayana Reddys Synopsis of Forensic Medicine & Toxicology 27 th edition pg. 81.', 'role': 'assistant'}]