This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
Treatment of CBD stones include all except 
Select and explain. 
A. Endoscopic papillotomy, B. ERCP, C. Choledochotomy, D. Ursodeoxycholic acid
D: Ursodeoxycholic acid
Answer: D: Ursodeoxycholic acid 
Explanation: Treatment of CBD stones ERCP Laparoscopic CBD exploration Open CBD exploration Ref: Sabiston 20th edition Pgno :1494