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': 'Danazol is a : \nSelect and explain. \nA. Androgen derivative, B. Oestrogen, C. Progesterone, D. FSH derivative', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Androgen derivative', 'role': 'assistant'}]