The "Compton effect" showed

A. that light undergoes interference

B. how an experiment can mislead

C. the wave nature of light

D. the particle nature of light

The Compton effect was discovered by Arthur Holly Compton in 1923. His experiment allowed him to observe that when the high-energy light or photons collide with a barrier or target, the scattering of loosely bound electrons occur. This observation favored that light behaves as a particle rather than a wave. Hence, the answer is D.