This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
All of the following are premalignant lesions of oral cavity cancer except 
Select and explain. 
A. Erythroplakia, B. Proliferative verrucous leukoplakia, C. Chronic hyperplastic candidiasis, D. Desquamative gingivitis
D: Desquamative gingivitis
Answer: D: Desquamative gingivitis 
Explanation: Conditions associated with malignant transformationHigh-risk lesions Erythroplakia (homogenous or speckled) Proliferative verrucous leucoplakia Chronic hyperplastic candidiasisMedium-risk lesions Oral submucous fibrosis Syphilitic glossitisLow-risk/equivocal-risk lesions Oral lichen planus Discoid lupus erythematosus Discoid keratosis congenitaRef: Bailey and love pg: 761