This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Aerial disorders, Subject name: Surgery
Re-implantation time for lower limb is: 
Select and explain. 
A. 6 hours, B. 8 hours, C. 10 hours, D. 12 hours
A: 6 hours
Answer: A: 6 hours 
Explanation: Ischemic time for digits is upto 8 hours. Ischemic time for extremities is 4-6 hours. Organ containing bag should be placed in a solution of saline with ice.