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: Dental
[{'content': 'Diagnosis \nSelect and explain. \nA. Congenital melanocytic nevus, B. Junctional, C. Nevus of Ito, D. Nevus of Ota', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The image is suggestive of "Nevus of Ota" which is a dermal melanocytic nevus seen in maxillary and ophthalmic nerve distribution.\nIt is usually unilateral and often associated with blue sclera and conjuctiva.', 'role': 'assistant'}]