The correct option is A Reflection
Reflection of light is the phenomenon of bouncing back of the light on striking a reflecting surface. If a surface is smooth and shiny, like a mirror, most of the light hitting that surface will be reflected.
Dispersion means splitting of light into seven colors.
Refraction means bending of light when it moves from one medium to another.
Absorption means light being absorbed by the object instead of reflecting or passing through them.