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
Blood vessels can be harvested from a body after death, for the purpose of transplantation latest by? 
Select and explain. 
A. 8 hours, B. 12 hours, C. 48 hours, D. 72 hours
D: 72 hours
Answer: D: 72 hours 
Explanation: The periods within which some organs should be removed are as follows: Cornea - 6 hours Skin - 24 hours Bone - 48 hours Blood vessels - 72 hours Ref: Essentials of Forensic Medicine and Toxicology by Narayan Reddy, 21st Edition, Page 112.