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
White raised painless areas when on peeling exhibit
painful erythernatous areas in case of 
Select and explain. 
A. Oral thrush, B. Perrphigus vulagaris, C. Leukoplakia, D. Erythroplakia
A: Oral thrush
Answer: A: Oral thrush 
Explanation: None