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': 'TRUE about RU - 486 is : \nSelect and explain. \nA. Used for inducing aboion in early week of pregnancy, B. Used along with contraceptive pill, C. Acts on the cytoplasmic receptor, D. Used for preventing ectopic implantation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Used for inducing aboion in early week of pregnancy', 'role': 'assistant'}]