This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, 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: Seminoma-a germ cell of testes. Blood test reveals the presence of placental alp. It is a tumour marker in seminoma and ovarian cancers. It&;s level increases as the tumour burden increases.', 'role': 'assistant'}]