This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Acanthosis is 
Select and explain. 
A. Increase in mitotic division, B. Increase in thickness of superficial layer, C. Increase in thickness of spinous Layer, D. Disruption of basal lamina
C: Increase in thickness of spinous Layer
Answer: C: Increase in thickness of spinous Layer 
Explanation: None