This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnosis in Obstetrics, Subject name: Gynaecology & Obstetrics
[{'content': 'AFP raised in: \nSelect and explain. \nA. Teratoma, B. Yolk sac tumor, C. Choriocarcinoma, D. Dysgerminoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Yolk sac tumorAlpha Feto protein (AFP) level are elevated in non- seminomatous germ cell tumors (NSGCT) including embryo. A carcinoma, yolk sac tumor and mixed germ cell tumors.Germ Cell TumorsSeminomatous germ Cell TumorsNon seminomatous Germ Cell K Tumors(NSGCT)TumorAFPhCGTumorAFPHcgSeminoma (male)-ve+/-Embryonal carcinoma+ve+veDysgerminoma (female)-ve+/-Yolk sac tumor (Endodermal sinus tumor)+ve-ve Choriocarcinoma-ve+ve Teratoma-ve-ve', 'role': 'assistant'}]