This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skin Lesions And Disorders Of Pigmentation, Subject name: Skin
[{'content': 'A child presents with this hyperpigmented patch over the back since birth. The level of melanin in this patch on biopsy is likely to be- \nSelect and explain. \nA. Epidermal, B. Dermoepidermal junction, C. Superficial dermis, D. Deep dermis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. Deep dermisDeep dermis. Notice the bluish color which is s/o deep dermal melanin. The lesion is actually a Mongolian spot.', 'role': 'assistant'}]