Fact 1: Aswitch is used to start the flow of current in an electrical circuit. Fact 2: Electric power is ready to use at the flip of a switch. Given the two facts above, what gives electric power?

(A). televisions.
(B). heat energy.
(C). energy.
(D). current flow.
(E). kinetic energy.
(F). engines.
(G). weather.
(H). air conditioners.
The answer is:
(D).