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: Unknown
[{'content': 'Which of the following germ cell tumor is malignant? \nSelect and explain. \nA. Leydig cell tumor, B. Mature teratoma, C. Seminoma, D. Dermoid cyst', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Seminoma Germ cell tumorsa)Malignant - Germinoma (seminoma, dysgerminoma), embryonal carcinoma, endodermal sinus tumor (yolk sac tumor), choriocarcinoma, immature teratoma.b)Benign - Mature teratoma, dermoid cyst.o Leydig cell tumor is not a germ cell tumor.", 'role': 'assistant'}]