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': 'Placental alkaline phosphatase is marker of ? \nSelect and explain. \nA. Theca cell tumour, B. Teratoma, C. Choriocarcinoma, D. Seminoma', 'role': 'user'}, {'content': "Answer: D \nExplanation: Answer is 'd' i.e. Seminoma Placental alkaline phosphatase is a marker of seminoma. Also know Gamma-glutamyl-transpeptidase is marker of --> seminoma testis AFP is not produced by --> seminomas and Choriocarcinomas", 'role': 'assistant'}]