Task: Text Completion
Input (English): [header] How to change a light bulb [title] Make sure the power is turned off. [step] This is a good idea any time you are messing around with electrical fixtures. Why not be safe? [substeps] Just switch the red power button to " off " in your fuse box. <sep> (A) Be aware this will shut off all of your power, not just for one fixture. You should also unplug the lighting fixture before you change the light bulb (if it's a fixture with a plug, that is). (B) This will never work if you have no power in your house. Have a friend help you, if you have one. (C) Grab two small magnetic pieces of every color you will use to screw the light on. You can make sure these objects are far enough from each other so as to not damage the light fixture. (D) When waiting until the next fuse to turn back on before using the meter, always reboot the meter. [title] Check the power control starting from the end of the meter.
Output (English): A