This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
The most appropriate drug for emergency contraception is : 
Select and explain. 
A. Misoprostol, B. Ethnyl estradiol, C. Levonorgesterel, D. Mifepristone
C: Levonorgesterel
Answer: C: Levonorgesterel 
Explanation: Levonorgesterel