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: Pathology
[{'content': 'Alkaline phosphatase is a tumor marker of which tumor? \nSelect and explain. \nA. Seminoma, B. Embryonal carcinoma, C. Yolk sac tumor, D. Embryonal sinus tumor', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Seminoma", 'role': 'assistant'}]