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: Unknown
[{'content': 'Coffee bean nucleiare seen all of the following except \nSelect and explain. \nA. Granulosa cell tumor, B. Follicular carcinoma thyroid, C. Brenner tumor, D. Langerhan’s cell histiocytosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: A nuclei with longitudinal groove gives it a coffee bean nuclei appearance and is seen characteristically in\nPapillary carcinoma thyroid\nBrenner tumor\nGranulosa cell tumor\nLangerhan’s cell histiocytosis', 'role': 'assistant'}]