This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Oral hairy leukoplakia is caused by - 
Select and explain. 
A. HSV, B. HIV, C. CMV, D. HPV
B: HIV
Answer: B: HIV 
Explanation: Oral hairy leukoplakia is GI manifestation of HIV REF:MICROBIOLOGY ANANTHA NARAYANAN NINTH EDITION PAGE.576