This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of Skin, Subject name: Skin
[{'content': 'Acanthosis involves - \nSelect and explain. \nA. Str spinosum, B. Str granuolosum, C. Str Basale, D. Str comeum', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans is 'a' i.e., Str spinosum Acanthosiso This term is used to describe an increase in number of cells in the spinous cell layer or prickle cell layer of the epidermis.", 'role': 'assistant'}]