This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Injuries, Subject name: Forensic Medicine
[{'content': 'For transplantation, cornea can be removed from dead body up to: \nSelect and explain. \nA. 6 hours, B. 12 hours, C. 18 hour, D. 24 hours', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (A). 6 hoursTime of molecular death in different tissues varies with each tissue.Max Time of removal of organs for transplantation:Brain 5-7 minutesQLiver 15 minutesKidney 45 minutesQHeart 60 minutesCornea 6 hoursQBone 48 hoursQVessels 72 hours', 'role': 'assistant'}]