What is the function of layers in graphic design software?

Layers in graphic design software serve the vital function of separating different elements of a design, which significantly streamlines the editing process. By utilizing layers, designers can work on individual components without affecting the others. This means you can move, edit, or adjust a specific layer while leaving the rest of the design intact, allowing for flexibility and precision.

For example, if you are working on a complex design that includes text, images, and background elements, having each of these components on separate layers makes it easy to modify one aspect without disrupting the entire composition. This organization is particularly beneficial when experimenting with different design ideas, as it allows designers to quickly make adjustments, hide layers, or apply effects selectively.

The other choices refer to functions that do not accurately reflect the primary role of layers. Adding sound, merging images, and creating 3D effects are achieved through different tools and functions within graphic design software that do not specifically pertain to the concept of layers.