Which labels belong in the areas marked X, Y, and Z?
A
X: ray bounces off a boundary and changes speed Y: ray changes direction Z: ray passes through a boundary and maintains constant speedB
X: ray bounces off a boundary and maintains constant speed Y: ray changes direction Z: ray passes through a boundary and changes speedC
X: ray bounces off a boundary and changes direction Y: ray maintains constant speed Z: ray passes through a boundary and does not change directionD
X: ray bounces off a boundary and does not change direction Y: ray maintains constant speed Z: ray passes through a boundary and changes direction