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
A 40 year old tobacco chewer was given a routine oral examination; on examination non-scrapable white patch was noticed in his left buccal mucosa.

Provisional diagnosis for the white Lesion will be 
Select and explain. 
A. Lichen planus, B. Erythroplakia, C. Leukoptakia, D. Submucous fibrosis
C: Leukoptakia
Answer: C: Leukoptakia 
Explanation: None