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': 'IUD, associatiate most commonly with explusion \nSelect and explain. \nA. Lippes loop, B. T Cu - 200, C. T Cu - 380, D. LNG-IUD', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Lippes loop", 'role': 'assistant'}]