This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Contraception, Subject name: Gynaecology & Obstetrics
[{'content': 'All are long acting reversible contraceptives except : \nSelect and explain. \nA. Implanon, B. IUCD, C. jadelle, D. OCP', 'role': 'user'}, {'content': 'Answer: D \nExplanation: IUCD is an effective, reversible and long term method of contraception Implanon and Jadella are subdermal implants which are effective for about 1-5 years Ref: Shaw Gynecology 17 e pg 267.', 'role': 'assistant'}]