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: Dental
Which of the following is rare in children? 
Select and explain. 
A. Herpangina, B. Dental cysts, C. Cherubism, D. Small pox
B: Dental cysts
Answer: B: Dental cysts 
Explanation: None