Question

which type of skin cancer is most common but least malignant?
melanoma
impetigo
squamous cell carcinoma
basal cell carcinoma

Explanation:

Basal cell carcinoma is the most common skin cancer and least malignant, rarely metastasizing. Melanoma is more malignant; squamous cell is more aggressive than basal cell; impetigo is not cancer.

Answer:

D. Basal cell carcinoma