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': 'Treatment of a large hydrocele in an infant ? \nSelect and explain. \nA. Repeated aspirations, B. Ligation of sac at the opening of ingunal canal, C. Herniotomy, D. Eversion of sac', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Herniotomy", 'role': 'assistant'}]