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
Casper's dictum is related to: AI 09; MP 11 
Select and explain. 
A. Identification of dead body, B. Calculation of time since death, C. Floatation of a dead body, D. Rate of putrefaction
D: Rate of putrefaction
Answer: D: Rate of putrefaction 
Explanation: Ans. Rate of putrefaction