Step 1: Understanding the Concept:
This question is about color theory and asks to classify the color purple. Colors are generally categorized into three groups: primary, secondary, and tertiary.
Primary Colors: These are the fundamental colors that cannot be created by mixing other colors. The primary colors in the RYB (Red, Yellow, Blue) model are Red, Yellow, and Blue.
Secondary Colors: These colors are created by mixing two primary colors.
Tertiary Colors: These are created by mixing a primary color with an adjacent secondary color.
Step 2: Detailed Explanation:
In the subtractive color model (RYB), used for pigments like paint, secondary colors are formed as follows:
Red + Yellow = Orange
Yellow + Blue = Green
Red + Blue = Purple (or Violet)
Since purple is formed by mixing two primary colors (red and blue), it is classified as a secondary color.
Step 3: Final Answer:
Purple is a secondary color. Therefore, option (B) is the correct answer.