Correct Response: B. The primary pigment colors or subtractive model primary colors are cyan, yellow, and magenta. Printers also include black ink, which is sometimes referred to as the key. This color model is often referred to as the CMYK model. Monitors and projectors use an additive color model often referred to as the RGB model since its primary colors are red, green, and blue. Orange (A) is not a primary color in either model. Green (C) is not a primary color for pigment. While printers contain black ink, black (D) is not considered a primary color for pigment.