Which color combination represents two primary colors on the color wheel?

The combination of red and yellow represents two primary colors on the color wheel because these colors are part of the traditional color theory used in art and design. Primary colors, by definition, are colors that cannot be created by mixing other colors together. In the RGB color model, which is used in digital applications, red and blue are primary colors, while in the CMY and RYB models (which are often used in painting), red, yellow, and blue are considered the primary colors.

When red and yellow are mixed, they create orange, which is a secondary color. This highlights the importance of primary colors as the foundation for creating a spectrum of other colors. In contrast, the other options include mixtures of primary and secondary colors or colors that do not fit the definition of primary colors—like the combination of red and green, which involves mixing primary with secondary colors. Understanding this fundamental concept of color theory is essential for tasks such as creating a palette for nail art or other design projects.