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: Skin
[{'content': 'Koplik spots are pathognomic of ? \nSelect and explain. \nA. Measles, B. Diphtheria, C. Donovanosis, D. Gonorrhoea', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Measles Koplik spots Koplik spots, the pathognomonic enanthem of measles, begin as small, bright red macules that have a 1-2-mm blue- white speck within them. They are typically seen on the buccal mucosa near the second molars in 1-2 days before and lasting 2 days after the onset of the rash.", 'role': 'assistant'}]