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
Oral hairy leukoplakia is seen in which of the following conditions? 
Select and explain. 
A. AIDS, B. Hepatitis B, C. Smoker's keratitis, D. Candidiasis
A: AIDS
Answer: A: AIDS 
Explanation: None