Answer:
(B) Refraction
Step-by-step explanation:
the fact or phenomenon of light being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
In physics, refraction is the redirection of a wave as it passes from one medium to another. The redirection can be caused by the wave's change in speed or by a change in the medium.
Hope this helps!! :) (Also there is an example attached :D)