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
Denture cleaning tablets include all, EXCEPT 
Select and explain. 
A. Hydrogen peroxide, B. Alkaline material, C. Sodium perborate, D. Detergent
A: Hydrogen peroxide
Answer: A: Hydrogen peroxide 
Explanation: None