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
Disinfection duration of alginate impressions when immersion method is used should not exceed 
Select and explain. 
A. 10 min, B. 20 min, C. 5 min, D. 30 min
A: 10 min
Answer: A: 10 min 
Explanation: None