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': 'Following statements are true about germ cell tumors of testis except - \nSelect and explain. \nA. They constitute 90-95% of all primary testicular tumors., B. Seminoma is the most common tumor developing in the pts with cryptorchid testis., C. Alpha-feto protein is markedly raised in all germ cell tumors., D. High inguinal orchidectomy is the initial surgical procedure.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]