If an object reflects light toward the eye then that object can be seen, and light is focussed on the retina. Given these facts, what does it mean if an object can be focussed on the retina among the following options:
- sunlight
 - lowered energy cost
 - it has density
 - it is a rainbow
 - observe it
 - Change colors
 - it is invisble
 - it can be seen


 

        it can be seen 