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: Pathology
Koplik spots 
Select and explain. 
A. First manifestation of measles, B. Rarely seen in measles, C. Are seen 2-3 days after cutaneous rashes, D. Is first manifestation but seldom seen
D: Is first manifestation but seldom seen
Answer: D: Is first manifestation but seldom seen 
Explanation: None