You are presented with the quiz "What object can be used to create a rainbow?" 

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 "light passing through a prism is refracted or divided into the colors of the spectrum". 

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


 

       prism    