Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to train your cat not to scratch the furniture [title] Pay attention to what your cat scratches and when. [step] Typically, cats scratch to mark their territory, sharpen their claws, and stretch their bodies. Pay attention to when and what your cat likes to scratch to figure out how to offer a suitable replacement that will be equally enticing.

Ending1: Start by making sure your cat doesn't not scratch your furniture but simply gouges it aggressively when you housetrain it. [substeps] Keep in mind that your cat should be put in its own litter box that goes down the door. Ending2: [substeps] The deficiencies of cognitive behavior have been shown to lead to increased biting and scratching. Cats are animal-derived rather than physical. Ending3: [substeps] Many cats have a preferred place and time to scratch, like right after a nap or when you come home. They also have preferences for the type of texture they like to scratch (often some type of nubby fabric that gives just the right amount of resistance). Ending4: [title] Avoid forcing your cat to paw at something they don't want to. [step] If you have small children, cats won't mind a bit of scraping.

Answer format: ending1/ending2/ending3/ending4