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 is not a eugenol sealer? 
Select and explain. 
A. Grossman sealer, B. AH-26, C. Tubli seal, D. Wach's paste
B: AH-26
Answer: B: AH-26 
Explanation: None