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': "Casper's dictum refers to - \nSelect and explain. \nA. Rate of putrefaction, B. Rigor mois, C. Rate of cooling of body, D. Greenish discoloration of another abdominal skin", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Caspers dictum states that a body decomposes in air twice as rapidly as in water and eight times as rapidly in eah. Dr. Narayana Reddys Synopsis of Forensic Medicine & Toxicology 27 th edition pg. 86.', 'role': 'assistant'}]