The nurse practitioner is doing an oral assessment on a 40-year-old black patient and notes the presence of a 1-om, nontender, grayish-white lesion on the left buccal mucosa. Which of the following is true concerning this lesion?
a. This lesion is leukoedema and is common in blacks.
b. This is the result of hyperpigmentation and is normal.
c. This is torus palatinus and would normally only be found in smokers.
d. This type of lesion is indicative of cancer and should be tested immediately.