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
Treatment of a large hydrocele in an infant - 
Select and explain. 
A. Repeated aspirations, B. Ligation of sac at the opening of ingunal canal, C. Herniotomy, D. Eversion of sac
C: Herniotomy
Answer: C: Herniotomy 
Explanation: None