Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to reduce your utility bills [title] Make sure that you turn the lights off whenever you leave the room. [step] If there is no one in the room, there is no point in lighting it up and all you are really doing is wasting both electricity and money. You can buy timers if you are worried about burglars and other things but make sure that you do not leave unnecessary lights on.

Ending1: [title] Keep out any pvc, (electric) speakers or stereo speakers. [step] Make sure they are securely locked in place. Ending2: You do not want to have to shut the door or turn your lights off at all. [title] For your home phone only, call there phone number. Ending3: [substeps] Be sure to let appliances and sinks have regular turning goes only. Leave lights off every time you turn them on. Ending4: You could also try switching to energy efficient bulbs. These might cost you a little bit more to buy at first but in the long run, they can save a huge amount on your bills.

Answer format: ending1/ending2/ending3/ending4