This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Gynaecology & Obstetrics
A woman comes after 96 hours post coitus. Best contraceptive of choice is? 
Select and explain. 
A. OCP, B. IUCD, C. Mifepristone, D. Progesterone only pills
B: IUCD
Answer: B: IUCD 
Explanation: IUCD: Can prevent implantation up till 5th day of unprotected inter-course Therefore, this is the most effective method for contraception