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
Dakin’s Solution is 
Select and explain. 
A. 0.5% NaOCl, B. 1% NaOCl, C. 1.5% NaOCl, D. None of the above
A: 0.5% NaOCl
Answer: A: 0.5% NaOCl 
Explanation: None