This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cornea and sclera, Subject name: Ophthalmology
What happens to corneal endothelium after injury- 
Select and explain. 
A. Slowly regenerates, B. Never regenerates, C. Regenerates rapidly, D. Forms a scar
C: Regenerates rapidly
Answer: C: Regenerates rapidly 
Explanation: Corneal endothelial decompensation occurs only after more than 75% of the cells are lost. Reference:Comprehensive Ophthalmology,AK Khurana,6th edition,pg no.96