This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Family Planning, Subject name: Social & Preventive Medicine
[{'content': 'Cu T with 10 years life is? \nSelect and explain. \nA. Cu 380 A, B. Progestasert, C. Cu T 200, D. Nova T', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) Cu 380 AREF: Park 20th edition page 427The T-Cu-38GA has been approved for use for 10 yearT-Cu 200 - 4 yrsNova T - 5 yrsProgestsert - 1 yrs', 'role': 'assistant'}]