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
Amount of infectious waste among hospital waste is: 
Select and explain. 
A. 1.50%, B. 4.50%, C. 25%, D. 12%
A: 1.50%
Answer: A: 1.50% 
Explanation: None