Final answer:
Marcia's painting uses a color scheme based on analogous colors - yellow, orange, and green.
Step-by-step explanation:
Analogous colors are colors that are next to each other on the color wheel and create a harmonious and cohesive color scheme. Based on this definition, the scenario that shows a color scheme based on analogous colors is Marcia's painting. She used yellow, orange, and green, which are adjacent to each other on the color wheel.
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