This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pathology
The immunohistochemical marker used to label basal cells in suspected prostate carcinoma 
Select and explain. 
A. Alpha Fetoprotein, B. Alpha-Methylacyl-coenzyme Racemase, C. Annexin, D. AgNOR
B: Alpha-Methylacyl-coenzyme Racemase
Answer: B: Alpha-Methylacyl-coenzyme Racemase 
Explanation: AFP is an oncofetal antigenAnnexin is an anti-inflammatory moleculeAgNOR is silver-stained nucleolar organizer Region