###Rationale: Endothelium consists of single layer of flat ploygonal epithelilal cells.It contains 'active pump' mechanism which keeps cornea dehydrated. Reference:Comprehensive Ophthalmology,AK Khurana,6th edition,pg no.96

###Answer: OPTION B IS CORRECT.
###Question: Corneal deturgescence is maintained by -
###Options:
A. Epithelium
B. Endothelium
C. Stroma
D. Descmet's membrane
