Final answer:
Abstract is the item that is not part of the group: light, colors, brushwork, and abstract.
Step-by-step explanation:
In the given group, the item that is not part of the group is abstract.
Abstract is a style of art that does not necessarily represent the real world, while light, colors, and brushwork are all elements commonly found in artwork.
For example, when creating a painting, an artist may use different colors, brushstrokes, and techniques to represent light and shadow. They may focus on using brushwork to create texture and movement. These elements are important in creating a realistic or expressive artwork, whereas abstract art often focuses on non-representational or conceptual ideas.
Learn more about Abstract art