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
Most common complication of common bile duct exploration 
Select and explain. 
A. Retained stone, B. Pancreatitis, C. Stricture of CBD, D. T-tube displacement
A: Retained stone
Answer: A: Retained stone 
Explanation: Most common complication of CBD exploration is retained stone Clearance of all common bile duct stones is achieved in 75-95% of patients with laparoscopic CBD exploration The rate of retained CBD stone is <5% Ref: Sabiston 20th edition Pgno :1496