This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Prostate and seminal vesicles, Subject name: Surgery
[{'content': 'Sipuleucel - T is a vaccine for: \nSelect and explain. \nA. RCC, B. Testicular tumor, C. Carcinoma prostate, D. Carcinoma bladder', 'role': 'user'}, {'content': 'Answer: C \nExplanation: In prostate cancer, several immunologic strategies have been under clinical development. The most impoant of these include the sipuleucel-T(Provenge) autologous prostatic acid phosphates (PAP) - loaded dendritic cell vaccine, the GVAX allogeneic recombinant whole cell vaccine, and CTLA-4 inhibitory approaches.', 'role': 'assistant'}]