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
Which of the following shows Kevorkian sign? 
Select and explain. 
A. Retina, B. Sclera, C. Choroid, D. Vitreous
A: Retina
Answer: A: Retina 
Explanation: Kevorkian sign is fragmentation of blood column in retinal vessels which occurs few minutes after death and lasts for an hour. It is visualised by ophthalmoscope. Ref: K.S.Narayan Reddy's Synopsis of Forensic Medicine and Toxicology, 29th edition, Chapter 7, page-83.