You Are Inside a Jet Plane Moving at a Constant

Multiple Choice

You are inside a jet plane moving at a constant velocity. You toss a rock straight up in the air, and then you keep your hand at the point of release. The rock comes down in your hand. This example illustrates

A) that moving clocks go slow.
B) the principle of relativity.
C) the principle of the constancy of lightspeed.
D) that light is a wave.
E) the Michelson- Morley experiment.