Which of the following groups of colors represents a split complementary scheme

The split complementary color scheme consists of three colors: one base color and two colors that are adjacent to its complementary color.

The following groups of colors represent a split complementary scheme:

1) Blue, orange, and yellow-orange
2) Red, cyan, and yellow-green
3) Green, violet, and red-violet

A split complementary color scheme consists of a base color and two colors that are directly adjacent to the complement (opposite) of the base color on the color wheel. Therefore, to determine a split complementary scheme, we need to choose a base color and its two neighboring colors on the color wheel.

Unfortunately, since you haven't provided any specific colors to choose from, I cannot provide a definitive answer. If you could provide the colors you want to work with, I'd be happy to guide you further in creating a split complementary scheme.