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: Skin
[{'content': 'The term Stratum malphigi refers to: \nSelect and explain. \nA. S.corneum + S.spinosum, B. S.corneum + S.granulosum, C. S.basale + S.granulosum, D. S.basale + S.spinosum', 'role': 'user'}, {'content': "Answer: D \nExplanation: The layers of epidermis from below upwards are: S.basale, S.spinosum, S.granulosum, S.corneum. The lowest 2 layers are referred to by the term S.malphigi. Ref: Rook's textbook of dermatology, 8th edition, Pg 3.8.", 'role': 'assistant'}]