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': 'The drug which reduces the size of myoma includes : \nSelect and explain. \nA. GnRH agonist, B. Danazol, C. Estrogen, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is a, b and c i.e. GnRH against; Danazol; and Mifepristone', 'role': 'assistant'}]