You are presented with the quiz "a rainbow is formed by what of light by separating light into all different colors" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "arainbow is formed by refraction of light by separating light into all different colors" and "refraction is the bending of light". 

So, what's the best answer to the question?


 

      Bending.     