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
[{'content': "Most impoant step in the repair of an indirect inguinal hernia is - \nSelect and explain. \nA. Herniotomy, B. Narrowing of the internal ring, C. Bassini's repair, D. Transfixation of the neck of the sac", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e. Narrowing of the internal ring", 'role': 'assistant'}]