This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous Tissue, Subject name: Anatomy
Lining of Structures (Arrows) shown in Brain is 
Select and explain. 
A. Squamous, B. Cuboidal, C. Columnar, D. Transitional
C: Columnar
Answer: C: Columnar 
Explanation: Columnar (Structures shown: Ventricles in bram)