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
The contraceptive method with a failure rate of <3 is : 
Select and explain. 
A. Copper-T, B. Vaginal sponge, C. Condom, D. Oral contraceptive pills
D: Oral contraceptive pills
Answer: D: Oral contraceptive pills 
Explanation: The oral contraceptives are highly effective contraceptive methodThe failure rate is very low ( 0.3 c/o ), as ovulation is inhibitedRef: TEXTBOOK OF GYNAECOLOGY; Sheila Balakrishnan; SECOND EDITION; PAGE NO 366, 370