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
Longer rigor mois occurs with - 
Select and explain. 
A. Vegetables poisons, B. Strychnine, C. Opium, D. Septicemia
B: Strychnine
Answer: B: Strychnine 
Explanation: The onset of rigor mois is early and persists for longer duration in strychnine poisoning. Dr. Narayana Reddys Synopsis of Forensic Medicine & Toxicology 27 th edition pg. 80.