Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean stairways with coarse carpeting [title] Start at the top of the staircase. [step] Using your broom, sweep horizontally across the top stair. Make sure to get any visible debris all to one side of the stair.

Ending1: Sweep horizontally for at least 3 turns; this should eliminate all the debris coming from all sides of the stairs. [substeps] To prevent the effect of the dirt on the carpeting, hold the broom behind the stair when you are working. Ending2: [title] Use a stiff mop, dustpan, or broom to work the debris from the treads. [step] Start with two or three steps and work up from there. Ending3: If there is debris on the staircase going up, you should put it out of view. [title] Mop the upper section of the stairway in one long, three step sweeping motion. Ending4: To get this done right, you may need to press down hard while sweeping across. [title] Sweep the debris you collected down to the next stair.

Answer format: ending1/ending2/ending3/ending4