This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Impoant Viral Diseases in Children, Subject name: Pediatrics
Nagayama spots are seen in: 
Select and explain. 
A. Measles, B. Roseola infantum, C. Mumps, D. Rubella
B: Roseola infantum
Answer: B: Roseola infantum 
Explanation: Nagayama spots: Roseola infantum Koplik spots- Measles Forchheimer spots- Rubella