Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean carpet stains [title] Remove as much dirt, debris or liquid from the carpet as possible. [step] Before applying any stain remover, clean up any solid material that is over the stain. This prevents you from pressing any dirt further into the carpet fibers.

Ending1: [substeps] Vacuum up dry, crumbly material. Scrape anything sticky off the carpet with a popsicle stick or butter knife. Ending2: However, if the stain is still beneath the surface, you should still keep the carpet out of the reach of pets and children. You can use a mild chemical cleaner instead. Ending3: [substeps] For more information, refer to step 2. [title] Wipe the stain with a slightly damp cloth. Ending4: [title] Roll up the carpet into a ball. [step] Being in a ball when you clean the stain will help prevent it from spreading and staining again.

Answer format: ending1/ending2/ending3/ending4