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': 'A line of conjunctival inflammation on lower eye lid margin is diagnostic of : \nSelect and explain. \nA. Measles, B. Rubella, C. Kawasaki disease, D. Infectious monouncleosis', 'role': 'user'}, {'content': "Answer: A \nExplanation: It is called Steiner's line and is seen in measles.", 'role': 'assistant'}]