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
Absolute indication for choledochotomy 
Select and explain. 
A. Gallstone ileus, B. Fever, C. Gallstone pancreatitis, D. Palpable CBD stone
D: Palpable CBD stone
Answer: D: Palpable CBD stone 
Explanation: Choledochotomy Absolute indications(High Suspicion of CBD calculi) Palpable CBD stone Jaundice with cholangitis Demonstration of stone on intra operative cholangiography CBD diameter >12 mm Relative indication (Low Suspicion of CBD calculi) Jaundice without cholangitis History of pancreatitis. Dilated CBD White bile on aspiration Dilated cystic duct Ref: Shackelford 7th edition Pgno :1326-1331