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': 'What % of testicular Ca is associated with cryp torchidism - \nSelect and explain. \nA. 10%, B. 30%, C. 70%, D. 90%', 'role': 'user'}, {'content': "Answer: A \nExplanation: Answer is 'a' i.e. 10%: Approx. 10% of testicular tumours are associated with cryptorchidism and higher the location of the undescended testes (intraabdominal versus inguinal), the greater is the risk of cancer.", 'role': 'assistant'}]