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
Mononucleosis in the blood is associated with what? SELECT ONE. 
Select and explain. 
A. Human papillomavirus (HPV), B. Epstein-Barr virus, C. HIV, D. Varicella zoster virus
B: Epstein-Barr virus
Answer: B: Epstein-Barr virus 
Explanation: Nasopharyngeal cancer is most closely associated with Epstein-Barr virus. This virus is also associated with infective mononucleosis and Burkitt's lymphoma.