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
Which one of the following is the management of pancreatic abscess - 
Select and explain. 
A. Needle aspiration, B. Gastro-cytostomy, C. External drainage, D. Jejuno-cystostomy
C: External drainage
Answer: C: External drainage 
Explanation: None