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': 'Non medicated Intra Devices (IUDs) are called as \nSelect and explain. \nA. 1st generation IUDs, B. 2nd generation IUDs, C. 3rd generation IUDs, D. Multi – load devices', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]