This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney & Ureturs, Subject name: Surgery
[{'content': 'Name the procedure shown here in ureter: \nSelect and explain. \nA. Stenting, B. Dormia Basket, C. Dilatation, D. Cannulation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Dormia BasketThe use of wire baskets under image intensifier control has been replaced by ureteroscopic techniques but they may be useful when the instruments and expertise are not available', 'role': 'assistant'}]