What factor is associated with a 75% increased risk of melanoma according to the material?

• A. Indoor tanning
• B. Genetic predisposition
• C. Excessive sunscreen use
• D. Regular exercise

Answer: (A)

The main idea is that ultraviolet radiation exposure from indoor tanning markedly raises melanoma risk. Indoor tanning devices emit concentrated UVA and UVB light, delivering repeated, intense UV exposure that damages skin cell DNA over time. This cumulative damage increases the likelihood of malignant transformation, and studies have reported a relative increase in melanoma risk on the order of about 75% for indoor tanners compared with those who never tan indoors. That specific figure is tied to indoor tanning in the material, which is why it’s the best choice.

Genetic predisposition does raise melanoma risk, especially in familial syndromes, but the 75% increase described is the figure associated with indoor tanning. Excessive sunscreen use does not intuitively increase risk; when used properly, sunscreen reduces UV exposure. Regular exercise is not a known factor that increases melanoma risk and is generally protective for health.