This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Spleen, Subject name: Surgery
[{'content': 'Mononucleosis in the blood is associated with what? SELECT ONE. \nSelect and explain. \nA. Human papillomavirus (HPV), B. Epstein-Barr virus, C. HIV, D. Varicella zoster virus', 'role': 'user'}, {'content': "Answer: B \nExplanation: Nasopharyngeal cancer is most closely associated with Epstein-Barr virus. This virus is also associated with infective mononucleosis and Burkitt's lymphoma.", 'role': 'assistant'}]