Which of the following premalignant conditions has the highest potential to become malignant?

  # Which of the following premalignant conditions has the highest potential to become malignant?

A. Proliferative verrucous leukoplakia

B. Speckled leukoplakia

C. Lichen planus

D. Tobacco pouch keratosis

The correct answer is A. Proliferative verrucous leukoplakia.