Select the statement that correctly describes how light travels?
A. Light can travel in a vacuum, and its speed is constant even if the light source is moving.
B. Light can travel in a vacuum and will travel slower if the light source is moving in the same direction.
c. Light can travel in a vacuum, and it travels faster if the light source is stationary.
D. Light travels only through a medium, it travels faster if the light source is stationary.