Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to choose a rabbit cage [title] Find the right size cage. [step] Different sized rabbits need different sized cages. Make sure the cage you choose is spacious enough for your particular rabbit.

Ending1: A cage that's too small can cause your rabbit's inner nervous system to become more stressed and jumpy. [substeps] Kale or a similar species of rabbit cage can provide 6 square feet per rabbit. Ending2: [substeps] For smaller rabbits, choosing a smaller cage can be great because they will be put in close quarters and they will get a chance to see each other in the cage. For larger rabbits, however, you may need to buy or build a cage large enough for your rabbit. Ending3: [substeps] Cages should be at least fourteen inches in height or enough height so the rabbit is able to sit upright without banging her head. Have roughly five square feet of space in the cage for your rabbit. Ending4: Enclosed spaces also limit the number of rabbits you can put in the cage. Since you'll be using a larger cage for your rabbits, you'll want to get at least six or eight.

Answer format: ending1/ending2/ending3/ending4