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': 'Lethal midline granuloma arises from ? \nSelect and explain. \nA. T-cells, B. B-cells, C. NK cells, D. Macrophages', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., NK cellso Lethal midline granuloma or polymorphic reticulosis is a lymphoma of natural killer (NK) cells infected with EBV.", 'role': 'assistant'}]