Correct Answer : RGB and CMYK
Explanation : There are many color models. Some of them are RGB, CMYK, YIQ, HSV, and HLS, etc. RGB stands for Red, Green, and Blue. This color space is widely used in computer graphics. RGB are the main colors from which many colors can be made.
CMYK stands for Cyan, Magenta, Yellow and Black. CMYK color model is used in electrostatic and ink-jet plotters, which deposits the pigmentation on paper.
