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: Microbiology
Listeria resists phagocytosis in phagosomes (phagolysosomes) due to: 
Select and explain. 
A. b-hemolysin, B. Caspases, C. Cell membrane adhesion molecules, D. Opacity associated protein (OAP)
A: b-hemolysin
Answer: A: b-hemolysin 
Explanation: Ans. is. 'a' i. e., b-hemolysin