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: Pediatrics
[{'content': 'Unilateral undescended testes is ideally operated around – \nSelect and explain. \nA. 2 months of age, B. 6 months of age, C. 12 months of age, D. 24 months of age', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]