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: Pathology
[{'content': 'Gleasons scoring is used for - \nSelect and explain. \nA. Carcinoma testis, B. Carcinoma colon, C. Carcinoma thyroid, D. Carcinoma prostate', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The Gleason Grading system is used to help evaluate the prognosis of men with prostate cancer.', 'role': 'assistant'}]