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': 'Schiller - Duval bodies are seen in- \nSelect and explain. \nA. Teratoma, B. Seminoma, C. Yolk sac tumour, D. Chorio - carcinoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Yolk sac tumor (endodermal sinus tumor or infantile embryonal carcinoma)\xa0→\xa0Schiller - Duval bodies.\nLeydig (interstitial) cell tumor\xa0→\xa0Reinke crystalloids.\n\tNote : - Rienke crystals are also seen in the hilus cell tumor of ovary.', 'role': 'assistant'}]