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
Mouthwash used in ANUG is 
Select and explain. 
A. Chlorhexidine, B. Normal saline, C. Hydrogen peroxide, D. Stannous fluoride
C: Hydrogen peroxide
Answer: C: Hydrogen peroxide 
Explanation: None