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': 'Features of strychnine poisoning - \nSelect and explain. \nA. Gradual onset of symptoms, B. Duration of rigor mortis is shorter, C. All muscles not affected at given time, D. Between fits muscles are slightly rigid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Rigor mortis sets in almost immediately after death and passes of early –\nSigns and symptoms appear within 1 to 2 hours.\nConvulsions affect all muscles at the same time.\nBetween convulsions the muscles are completely relaxed.', 'role': 'assistant'}]