OPT:
[A]. cool;
[B]. heat;
[C]. Slow.;
[D]. slow;
[E]. fly;
[F]. Move;
[G]. expand;
[H]. motion;
Given those answer options, answer the question: Fact 1: The vanes rotating in an electric fan causes air to move. Fact 2: Air molecules move slowly when they are cool. Given the two facts above, vanes rotating in an electric fan causes air molecules to what?
A:
[A].