Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to compare cat litter boxes [title] Figure out if your cat has a specific preference. [step] Cats with short legs or older cats with arthritis will probably require a litter box that is lower. That way, they can get in more easily.

Ending1: However, your cat may not like the idea of trying a litter box that's on a higher shelf, as it will not get as much full use as a litter box that's on a lower shelf. It is not recommended that you add an appealing quality litter box to your cat's space. Ending2: Cats with an alternate form of carrier should choose one that is higher up. Other cats prefer a cat that has a flatter shape and a narrow side by finding a carrier with a narrow band of membrane at the top. Ending3: A shorter litter box may be ideal for them because they are less prone to running away than cats with long legs. [substeps] You can also compare cat litter boxes with an older cat to check if a cat with hind legs will be able to carry around the litter box. Ending4: [substeps] If your cat suffers from urinary disease, is older or just shorter, it will likely need a litter box where it can enter and leave more easily. Climbing of any kind can become painful, forcing the cat to go outside the box.

Answer format: ending1/ending2/ending3/ending4