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 used as inhibitor in the composition of composite? 
Select and explain. 
A. Para-toluidine, B. Butylated hydroxy toluene, C. Methyl ether, D. Tertiary amine
B: Butylated hydroxy toluene
Answer: B: Butylated hydroxy toluene 
Explanation: Butylated hydroxy toluene inhibits polymerization during storage.