The correct option is B reflection
Refraction of light is the phenomenon of bending of light or change in the direction of light, when it passes obliquely from one transparent medium to another.
Reflection is the phenomenon in which light rays on striking a polished surface(such as a mirror) bounce back or are sent back into the same medium.
Dispersion is the phenomenon of splitting of white light into its component colours (VIBGYOR) on passing through a glass prism.
Scattering is the phenomenon by which a beam of light is redirected or deflected in many different directions, when it passes through an imperfect medium, due to interaction with the particles of the medium.
Hence, the correct answer is OPTION B.