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: Gynaecology & Obstetrics
[{'content': 'Which of the following combination is not true : \nSelect and explain. \nA. Call Hexner bodies - GC tumor, B. Rokitansky bodies - teratoma, C. Schillar duval bodies - serous tumor, D. Reinke crystal - Hilus cell tumor', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Schillar duval bodies - serous tumor', 'role': 'assistant'}]