This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non-Hormonal -  Intrauterine Devices , Subject name: Gynaecology & Obstetrics
[{'content': 'Menorrhagea, which IUCD should be used - \nSelect and explain. \nA. CNG, B. CuT, C. Mirena, D. Multiload', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Mirena", 'role': 'assistant'}]