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
Contraceptive effect of CuT-380A lasts for how many years? 
Select and explain. 
A. 5, B. 10, C. 15, D. 20
B: 10
Answer: B: 10 
Explanation: Ans. (b) 10 yearsShaw 15ih227-8Name of deviceEffective period* CuT 380A10 years* Nova T-Silver5 years* Multiload3755 years* Multiload2503 years