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': 'Seminoma is carcinoma of: September 2005 \nSelect and explain. \nA. Kidney, B. Urinary bladder, C. Testes, D. Penis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C: Testes', 'role': 'assistant'}]