Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to make a cat and dog get along [title] Prepare for the introduction. [step] Whether you are bringing a new cat or dog into a home that already has a cat or dog or you are trying to make your existing pets get along better, you need to create a good foundation to build on. To begin with, make sure that your home has ample space for the two pets to have some space away from each other.

Ending1: [substeps] Where possible, have cages, food bowls, toys, and a litter box all available on your property. This will set your home up so that it meets its existing owners' needs. Ending2: This will ensure that neither pet will feel threatened or intimidated by the other. [substeps] For example, there may be stairs leading from the bottom to the top of the house, all the way up. Ending3: You will need to keep the pets separated for several days, so multiple rooms in your home are necessary. [substeps] Also, make sure that the dog will follow your commands. Ending4: An ideal cat-house is somewhere that allows only one space per pet. Limit the number of cats you have, and if you have more than one cat, keep them nearby.

Answer format: ending1/ending2/ending3/ending4