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': "Nevus achromicus and Nevus anemicus can be differentiated by: \nSelect and explain. \nA. Hypopigmented lesions, B. Immunofluroscence, C. Diascopy, D. Huctchinson's sign", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Lesions in Nevus depigmentosus will not increase in size as the borders does not merge into surrounding skin on Diascopy. (Pressing with a glass slide)\nWhereas borders get merged and there will be increase in size in Nevus anemicus, on Diascopy.', 'role': 'assistant'}]