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
Marsupialization is the procedure done in 
Select and explain. 
A. Large cyst, B. P.D. cyst, C. Aneurismal bone cyst, D. Stafne cyst
A: Large cyst
Answer: A: Large cyst 
Explanation: None