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': 'Contraception of choice for a working women with irregular and profuse bleeding : \nSelect and explain. \nA. IUCD, B. Barrier, C. Spermicide, D. Oral pills', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Oral pills', 'role': 'assistant'}]