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': 'Atypical lymphocytes in infectious mononucleosis are made up of - \nSelect and explain. \nA. CD4+ T cells, B. CD8+ T cells, C. Plasma cells, D. NK Cells', 'role': 'user'}, {'content': 'Answer: B \nExplanation: . CD8+ T cells', 'role': 'assistant'}]