Melanoma accounts for what percentage of skin cancers?

• A. 4%
• B. 16%
• C. 80%
• D. 50%

Answer: (A)

Skin cancers fall into several types, and the question tests the relative frequency of melanoma compared with basal cell and squamous cell carcinomas. Among skin cancers, basal cell carcinoma is by far the most common, followed by squamous cell carcinoma, while melanoma is less common but more deadly if not caught early. In typical distributions, about four-fifths (roughly 80%) are basal cell, about one-fifth (roughly 16%) are squamous cell, and melanoma makes up about four percent. That’s why the correct percentage is around 4%. The other options reflect the proportions of the more common skin cancer types rather than melanoma’s share.