Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean cork [title] Vacuum cork floors. [step] Vacuum or sweep your cork floors. Do this to remove any obvious layers of dirt or dust.

Ending1: This will help prevent any additional dirt and debris that accumulates during the cleaning process. [substeps] Do not vacuum wooden or metal surfaces. Ending2: That dirt can scratch the floor over time. Use a soft-bristled broom or a low setting on your vacuum. Ending3: Also vacuum with your finger or brush in difficult-to-reach areas of cork. If there are dirt marks, scrub with the same brush. Ending4: [substeps] If using a broom or vacuum, clean with light pressure. Use the highest air pressure by spinning the broom or vacuuming the floor vigorously.

Answer format: ending1/ending2/ending3/ending4