Fact 1: If an object reflects light toward the eye then that object can be seen.

Fact 2: Light is focussed on the retina.

Given the two facts above, answer the question "what does it mean if an object can be focussed on the retina?" with 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 