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': 'Life for as long as 10 years is of which IUCD : \nSelect and explain. \nA. Cu T200, B. Cu 250, C. Cu T380A, D. Profestase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cu T380A', 'role': 'assistant'}]