Why is it important for the artist to show the highlights and shadows in this image?

To show the different textures present.
To show the ridge and opposite sides of the sand dunes.
To show the differentcolors present.
To show the different lines present.

The correct answer is: To show the ridge and opposite sides of the sand dunes.

By depicting highlights and shadows, the artist can create depth and three-dimensionality in the image, allowing the viewer to perceive the shape and form of the sand dunes. This is important to accurately represent the physical characteristics of the subject and make it visually engaging.