Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to prevent dental problems in rabbits [title] Feed your rabbit a diet close to that of wild rabbits. [step] Wild living rabbits dining on a natural diet of grasses and fibrous vegetation do not develop dental disease. Pet rabbits that eat a commercial mix with little or no vegetables or hay are at high risk of dental disease.

Ending1: [substeps] Key to preventing dental problems is to feed a diet that better represents what wild rabbits eat. The ideal foods are fresh growing grass and good quality hay. Ending2: [substeps] Rabbits that eat commercial mixes on hay particles, make hay compost, or clean up hay you feed them are less likely to suffer dental problems at home. Certain rabbits, such as those grown by adults, will very likely require weekly feeds from a veterinarian. Ending3: Moderation in your rabbit's diet also permits your rabbit to eat a diet of grass grains, trees, and mature fruit, especially seeds. [substeps] Foods high in fiber, animal protein, and natural fats have also been shown to be desirable in rabbits. Ending4: While a rabbit eating wild vegetables, not all ground plants use pasture hay or hutches to supplement their diets. [substeps] Wild live rabbits have several diets that start with 5-9 rabbit meals; including 2 more for a 3-4 day long diet.

Answer format: ending1/ending2/ending3/ending4