Speed, Velocity or Acceleration?

Light travels at a speed of
186,000 miles per second.

Speed

Explanation:

Speed is how fast something moves.

Velocity is how fast it moves and in what direction it moves in.

Acceleration is the change in how fast it moves. I.e. if it speed up or slows down.

Here we are given the speed of light (186,000 mps) but no direction or change, therefore it is speed.

Hope this helped!