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 occurs in OSMF? 
Select and explain. 
A. Stomatopyrosis, B. Vesicles, melanosis, and xerostomia, C. Blanched pallor hard subepithelial stiffness, D. All
D: All
Answer: D: All 
Explanation: None