This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
Endolymph resembles 
Select and explain. 
A. CSF, B. ICF, C. ECF, D. Plasma
B: ICF
Answer: B: ICF 
Explanation: PerilymphEndolymphBony labyrinthMembranous labyrinthFormed from CSFSecreted by stria vascularisResembles ECFResembles ICFNa+ richK+ richReabsorbed into subarachnoid spaceReabsorbed into endolymphatic sacRef: Hazarika; 3rd ed; Pg 24