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': 'Surgery for undescended testes is ideally performed before what age? \nSelect and explain. \nA. 6 months, B. 12 months, C. 24 months, D. 36 months', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Surgical correction of undescended testis should be done at 6 months and maximum by 1 year. Ref: Nursing care of the pediatric surgical patient By Nancy Tkacz Browne, Page 147-8; CPDT 20th Edition, Page 974.', 'role': 'assistant'}]