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
The bacterial enzyme detected in gingival crevicular fluid is 
Select and explain. 
A. Fibronectin, B. Cytokines, C. Phospholipase, D. Myeloperoxidase
C: Phospholipase
Answer: C: Phospholipase 
Explanation: None