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': 'Precocious pubey is seen with which ovarian tumour : \nSelect and explain. \nA. Dermoid, B. Gynandroblastoma, C. Granulosa cell tumour, D. Arrhenoblastoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Granulosa cell tumour', 'role': 'assistant'}]