Which of the following is a common use for makeup application?

Makeup application is commonly used to cover blemishes, which is an important aspect of enhancing a person's appearance. This practice allows individuals to achieve a more even skin tone and can help boost confidence by concealing imperfections such as acne, scars, or discoloration. By using various products such as concealers and foundations, makeup artists can effectively camouflage these imperfections, creating a smoother and more polished look for the skin.

While hydration of the skin is important in skincare, it is typically achieved through moisturizers and serums rather than through makeup. Removing makeup is a necessary step after application, generally involving cleansing products, and is not a purpose of makeup itself. Exfoliation, on the other hand, is a skin treatment that helps remove dead skin cells to reveal a fresh layer but is not a function of makeup application. Thus, covering blemishes is the primary and appropriate use for makeup in this context.