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 added to prevent polymerization of polymer during storage 
Select and explain. 
A. Hydroquinone, B. Benzoyl peroxide, C. Tertiary amine, D. camphoroquinone
A: Hydroquinone
Answer: A: Hydroquinone 
Explanation: None