This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Histopathological findings, Subject name: Dental
[{'content': 'Acanthosis involves:- \nSelect and explain. \nA. Stratum malphigii, B. Stratum granulosum, C. Stratum lucidum, D. Stratum corneum', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Acanthosis - Thickening of prickle cell layer or malphigian layer. Increase in number of keratinocytes in the prickle cell layer of the epidermis Pseudoacanthosis - increased thickness of the epidermis due to enlarged keratinocytes Acanthosis, Acantholysis- Stratum spinosumHypergranulosis, Agranulosis- Stratum Granulosum', 'role': 'assistant'}]