Final answer:
Highlights are the parts of an object that catch and reflect the most light back to the viewer.
Step-by-step explanation:
The parts of an object that catch and reflect the most light back to the viewer are called highlights.
Highlights are the areas on an object where the light is most intense, such as the bright spots on a shiny surface or the reflections on a glass surface. These areas appear brighter than the rest of the object because they reflect more light back to the viewer.
For example, if you look at a polished metal spoon, the parts that appear the brightest are the highlights, where the light is directly bouncing off the surface and into your eyes.
Learn more about Light reflection