A father brings in his two-year-old son for evaluation at your office. The father remarks that his son was born with what appears as a small red birthmark on his forehead. He wishes to know if it requires treatment or warrants removal. Applying pressure over the area of interest causes blanching of the lesion, and the father reports that the birthmark appears darker when his son cries. What is your prognosis?

A. Malignant and requires immediate biopsy

B. A pre-cursor to a malignant condition and will continue to increase in size with time

C. Benign and will likely regress by the time the child is 5 years of age

D. Benign but is likely to be permanent and will darken with time