Which colors are primarily used in four color printing?

The correct answer identifies the primary colors used in the four-color printing process, which are Cyan, Magenta, Yellow, and Black. This system, often referred to as CMYK, is the standard for full-color printing.

Cyan, Magenta, and Yellow are the subtractive primary colors, meaning they absorb (subtract) various wavelengths of light when printed on a white background. By mixing these colors in different proportions, a wide range of colors can be created. The addition of Black (K) is essential for producing deeper shades and enhancing contrast in printed materials, as it provides a level of depth that cannot be achieved by the other three colors alone.

This color model is widely used in the printing industry for everything from magazines to marketing materials, making it crucial for anyone studying advertising and visual design to understand how it works.