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': 'Incidence of undescended testis in term infants is: \nSelect and explain. \nA. <5%, B. <1%, C. 8%, D. 10%', 'role': 'user'}, {'content': "Answer: A \nExplanation: The incidence of undescended testes is approximately 30% in preterm infants and 1 to 3% in term infants. Ref: Schwaz's principle of surgery 9th edition, chapter 39.", 'role': 'assistant'}]