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: Surgery
WYDASE is: 
Select and explain. 
A. Jet injector., B. Hyaluronidase., C. CCLAD., D. EDA.
B: Hyaluronidase.
Answer: B: Hyaluronidase. 
Explanation: None