Which of the Following Describes an Experiment That Demonstrates That

Which of the following describes an experiment that demonstrates that light is a wave?

A) If you allow light from a transparency projector to hit a small container full of water placed in front of the projector, you can detect an energy transfer as the light enters the water.
B) a mystical experiment in which the instructor pulls a cosmic toad out of a baseball cap.
C) If you let light pass through a narrow "slit" formed by your fingers, you can detect the energy transfer as the light passes through your fingers.
D) If you let light pass through a narrow "slit" formed by your fingers, you can see an interference pattern.
E) If you allow light from a transparency projector to hit a small container full of water placed in front of the projector, you can see an interference pattern in the water.