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
NAGLERS REACTION detects 
Select and explain. 
A. coagulase, B. hyaluronidase, C. lecithinase, D. all the above
C: lecithinase
Answer: C: lecithinase 
Explanation: None