Which of the following statements about the CMYK model is correct?

The CMYK color model is primarily used in the printing industry and is based on the subtractive color mixing process. This model combines cyan, magenta, yellow, and black inks to produce a wide range of colors. One of the fundamental principles of the CMYK model is that colors are created by layering these inks on top of each other, which absorb certain wavelengths of light and reflect others, resulting in the color we perceive. By mixing different proportions of these inks, printers can achieve the desired hue, saturation, and brightness.

The other statements do not accurately describe the CMYK process. For instance, the CMYK model does not use RGB color mixing; rather, RGB is used for light-based displays like monitors, while CMYK is specifically for physical prints. Also, CMYK does not create colors by adding light; instead, it works by subtracting light from a white background (paper) as more colors are added. Finally, CMYK is not limited to digital prints; it is primarily utilized in traditional printing methods, such as offset printing and other physical print media. Thus, the statement about combining ink colors layer by layer best captures the essence of the CMYK model.