Final answer:
When you see an object that is not a light source, it's because light waves are reflected by the object. Both absorption and refraction can occur, but it is primarily the reflected light that allows us to see the object. Therefore the correct option is A.
Step-by-step explanation:
When you see an object that is not a light source, you are seeing light waves that are reflected by the object. All objects absorb some amount of light, but it's primarily the light that's reflected that reaches our eyes. When light hits an object, if the object's surface is smooth and shiny (like a mirror), it will reflect most of the light waves in the same direction. On the other hand, objects with rough surfaces scatter the light in all directions, and we see these as diffused reflections. Absorption and refraction can also happen, but for you to see an object, light has to be reflected from it and reach your eyes.
Learn more about Reflection of Light