This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Gynae), Subject name: Gynaecology & Obstetrics
[{'content': 'Which of the following is feminizing ovarian tumours: \nSelect and explain. \nA. Granulosa cell tumour, B. Arrhenoblastoma, C. Hilus cell tumour, D. Gynandroblastoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (Granulosa cell tumour): Ref: 362-S (339-S14th)TUMOURS ARISING FROM PRIMITIVE MESENCHYME(a) Feminizing: Granulosa cell, Theca cell, Leteoma(b) Neutral: Dyserminoma (Seminoma)(c) Virilising: Arrhenoblastoma, suprarenal cortical tumour, Hilus cell tumours(d) Mixed: Gynandroblastoma', 'role': 'assistant'}]