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: Pharmacology
Mifepristone (RU–486) is: 
Select and explain. 
A. Anti–androgen, B. Anti–estrogen, C. Anti–progestin, D. Androgen
C: Anti–progestin
Answer: C: Anti–progestin 
Explanation: None