This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
GnRH analogue used In hormonal treatment of carcinoma of prostate Is 
Select and explain. 
A. Goserelin, B. Nilutamide, C. Cyproterone acetate, D. Finasteride
A: Goserelin
Answer: A: Goserelin 
Explanation: Goserelin is a long acting GnRH agonist. It is used in the treatment of prostate cancer. nilutamide is also used in prostate cancer but it is anti androgen not a GNRH analogue finatseride is 5 alpha reductase inhibitor cyproterone- anti androgen with progestational propeies (REF.Essential of medical pharmacology K D TRIPATHI 6 Edition, Page No - 239)