Q: Fact 1: Aradio converts electrical energy into vibrations. Fact 2: Sound is vibrational energy. Given the two facts above, a radio converts electrical energy into what?

Choose from:
[A]. sound.
[B]. waves.
[C]. photons.
[D]. touch.
[E]. engines.
[F]. light.
[G]. smell.
[H]. motion.
A:
[A].