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: Social & Preventive Medicine
[{'content': 'Which of the following is false about intra-uterine devices (IUDs)? \nSelect and explain. \nA. Multiload Cu-375 is a third generation intra-uterine device (IUD), B. Copper devices are effective as post-coital contraceptives, C. LNG-20 (Mirena) has an effective life of 5 years, D. Pregnancy rates of Lippes Loop and T Cu-200 are similar', 'role': 'user'}, {'content': "Answer: A \nExplanation: Multioad Cu-375 is a newer copper intra-uterine device (IUD). The copper devices comprise the second generation IUDs. The non-medicated or ine devices are the first generation IUDs and the hormone-releasing devices are the third generation IUDs Ref: Park's Textbook Of Preventive And Social Medicine, By K. Park, 19th Edition, Pages 393-395.", 'role': 'assistant'}]