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
[{'content': 'What is first sign noticed in the eye after death of a person? \nSelect and explain. \nA. Corneal haziness, B. Tache noire sclerotica, C. Kevorkian sign, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Fragmentation of blood columns in a retinal vessel is called Kevorkian sign. It is the first sign in eye after death of a person.', 'role': 'assistant'}]