How does a mirror affect the path of light? light rays strike a mirror in a perpendicular direction. light rays strike a mirror in a perpendicular direction. light rays travel in a direction parallel to a mirror. light rays approach a mirror in a straight line and then reverse direction. light rays change direction when they hit a mirror.

 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!)

Light rays approach a mirror in a straight line and then reverse direction

Explanation:

Going in a straight line and then reverseing direction mean you were reflected, meaning "Light rays approach a mirror in a straight line and then reverse direction" is the correct answer.