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
[{'content': 'The immunohistochemical marker used to label basal cells in suspected prostate carcinoma \nSelect and explain. \nA. Alpha Fetoprotein, B. Alpha-Methylacyl-coenzyme Racemase, C. Annexin, D. AgNOR', 'role': 'user'}, {'content': 'Answer: B \nExplanation: AFP is an oncofetal antigenAnnexin is an anti-inflammatory moleculeAgNOR is silver-stained nucleolar organizer Region', 'role': 'assistant'}]