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
First pit and fissure sealant: 
Select and explain. 
A. Novaseal, B. Newseal., C. Selfseal, D. Highseal
A: Novaseal
Answer: A: Novaseal 
Explanation: None