When the chiaroscuro technique is used in a painting, the viewer believes the image is three-dimensional. Hence, Option C is correct.
When an artist uses the chiaroscuro technique, they demonstrate the ways in which light hits a form. When a three-dimensional object moves away from the light, it becomes darker with the shade.
An image is attached at the end for better understanding. At the painting's right, viewers see Lear turn his back on his daughter and leave.
Therefore, Option C, where the viewer believes the image is three-dimensional, is right.
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