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
All are used to shrink fibroids EXCEPT : 
Select and explain. 
A. Estrogen, B. Danazol, C. Mifepristone, D. GnRH analogue
A: Estrogen
Answer: A: Estrogen 
Explanation: Estrogen