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: Pediatrics
[{'content': "Pastia's lines are seen in \nSelect and explain. \nA. Measles, B. Varicella, C. Syphilis, D. Scarlet fever", 'role': 'user'}, {'content': "Answer: D \nExplanation: Pastia's lines :\n\nRash gets concentration in axilla and grain.\nIt is seen in Scarlet fever.", 'role': 'assistant'}]