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:a) Danazolb) GnRH analogc) RU-486d) Estrogene) Progesterone \nSelect and explain. \nA. ab, B. bc, C. acd, D. abc', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]