Which of these items can be used as an electronic scheduling tool?

In the film "epic 2015," epic is the name for:

An endless cycle of creation and response on the internet is called

If an appliance consumes 500 w of power and is left on for 5 hours, how much energy is used over this time period? a. 2.5 kwh b. 25 kwh c. 250 kwh d. 2500 kwh