This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Emergency Contraception - Ulipristal acetate (UPA), Subject name: Gynaecology & Obstetrics
[{'content': 'Anti progesterone is RU-486 is also called? \nSelect and explain. \nA. Mifeprestone, B. Gossypol, C. Centchroman, D. Misoprostol', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) MifeprestoneREF: Shaw 13th ed p. 233RU-486 is other name of mifeprestone', 'role': 'assistant'}]