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
Activator of light cure composite is: 
Select and explain. 
A. Camphorquinone., B. Tertiary amine., C. Blue light., D. Benzoyl peroxide.
B: Tertiary amine.
Answer: B: Tertiary amine. 
Explanation: None