I believe your answer would be D) Light rays change direction when they hit a mirror. Since if a light ray encounters a smooth and shiny surface, such as a mirror, the rays will indeed bounce off the surface casting it to go into a different direction.
I paraphrased from an article, if you want to learn more on the Reflection and Refraction of Light then I suggest you check it out just search up "Why do light rays change direction when they pass through a mirror." Should be the first result if not then it's published by "Live Science"
Also I'll say that I'm deeply sorry that I could not be of services when you needed my answer, since this comment is 3 days old.
-From Lyfe
(Also this is within the guidelines since paraphrasing is putting it into my own words unlike blatant copying of the original source material without credit, and I even put credit to the original website, thank you for your time!)
