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
The most common precancerous lesion for oral  malignancy is 
Select and explain. 
A. chronic hypertrophic candidiasis, B. leukoplakia, C. dental ulcers, D. atrophic glossitis
B: leukoplakia
Answer: B: leukoplakia 
Explanation: None