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
5 days after CBD surgery there is a small leak. What will be the best treatment 
Select and explain. 
A. Ultrasound guided aspiration, B. ERCP and stenting, C. Re-exploration and hepaticojejunostomy, D. Re-exploration and primary repair
A: Ultrasound guided aspiration
Answer: A: Ultrasound guided aspiration 
Explanation: There is a small leak which can be managed by ultrasound guided aspiration. Many bile leaks resolve with percutaneous drainage alone, and ERCP is probably unnecessary in the absence of radiographic or clinical evidence of ongoing bile drainage Ref: Blumga 5th edition Pgno :627