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
After exploration of common bile duct, the T- Tube is removed on whcih of the following days - 
Select and explain. 
A. 3 postop.day, B. 4 postop. day, C. 12 postop.day, D. 6 postop day
C: 12 postop.day
Answer: C: 12 postop.day 
Explanation: None