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
Rigor mortis is hastened in death following- 
Select and explain. 
A. Cholera, B. Electrocution, C. Physical exertion, D. All the above
D: All the above
Answer: D: All the above 
Explanation: Rigor is early and duration is short in - Cholera, typhoid, TB, Cancer, cut-thorat wound, firearm injury, electrocution 
Rigor onset is rapid in fatigue/exhaustion before death, after insulin injection (loss of muscle glycogen), and exposure to heat.