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
Which of the following conditions is not considered
as premalignant 
Select and explain. 
A. Erosive lichen planus, B. Syphilitic glossitis, C. Leukoedema, D. Leukoplakia
C: Leukoedema
Answer: C: Leukoedema 
Explanation: None