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': 'Drugs that reduce the size of fibroid are : \nSelect and explain. \nA. Danazol, B. Progesterone, C. RU-486, D. Estrogen', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is a i.e. Danazol; and GnRH analogues', 'role': 'assistant'}]