We are able to see an illuminated object because it _________.
(a) scatter heat (b) absorb light (c) reflects light (d) gives off light

Correct option is (d) gives off light

We are able to see an illuminated object because it gives off light.

We are able to see something because light from that object (sun, lamp) or the light reflected from the object (things around us which can't produce light) falls on our eyes.