What is an example of two primary colors combined?

The combination of two primary colors to create a secondary color is a fundamental concept in color theory. Primary colors are those that cannot be made by mixing other colors; they include red, blue, and yellow. When red and yellow are mixed together, they produce orange, which is a secondary color. This is the essence of the question, as it highlights the direct interaction between two primary colors to result in a distinctly different color.

In contrast, the other options do not represent combinations of two primary colors. Blue and green, for example, consists of a primary color (blue) mixed with a secondary color (green), which does not align with the question's requirements. Similarly, yellow and purple consist of a primary color and a secondary color, while red and orange involve a primary color and another secondary color. Understanding these distinctions is crucial for grasping the fundamentals of color mixing in floral design and any related artistic fields.