A Mother Brings Her 4-Month-Old to the Clinic with Concerns

A mother brings her 4-month-old to the clinic with concerns regarding a small pad in the middle of the upper lip that has been there since 1 month of age.The infant has no health problems.On physical examination,the nurse notes a 0.5-cm,fleshy,elevated area in the middle of the upper lip.There is no evidence of inflammation or drainage.What would the nurse tell this mother?

A) "This is an area of irritation caused from teething and is nothing to worry about."
B) "This is an abnormal finding and should be evaluated by another health care provider."
C) "This is the result of chronic drooling and should resolve within the next month or two."
D) "This is a sucking tubercle caused from the friction of breast- or bottle-feeding and is normal."