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': 'Diabetic woman with malignant retinopathy requires : \nSelect and explain. \nA. Permanent sterilization, B. Conventional contraceptives, C. IU devices, D. Oral pills', 'role': 'user'}, {'content': 'Answer: C \nExplanation: IU devices', 'role': 'assistant'}]