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': 'IUCD with maximum incidence of ectopic pregnancy : \nSelect and explain. \nA. Progestase, B. Lippes loop, C. Copper - T, D. Multiload device', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Progestase', 'role': 'assistant'}]