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
Which layer of epidermis is responsible for its proliferation and turn over 
Select and explain. 
A. Spinous layer, B. Stratum lucidum, C. Basal Layer, D. Granular layer
C: Basal Layer
Answer: C: Basal Layer 
Explanation: Basal layer is the most undifferentiated layer of epidermis   and the layer in which most proliferation occurs.