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: Pathology
Reactive oxygen free radical in lysosome is released by 
Select and explain. 
A. NADPH oxidase, B. Superoxide dismutase, C. Peroxidase, D. Myeloperoxidase
A: NADPH oxidase
Answer: A: NADPH oxidase 
Explanation: None