Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to save money on vet care for your dog [title] Schedule regular checkups with your vet. [step] A key to preventative care for your dog is making sure they see the vet regularly for checkups. This way your vet can keep an eye on your dog's weight, vitality, and check for signs of chronic disease such as arthritis or cancer.

Ending1: [substeps] If you've got more than one vet in your house, schedule regular checkups so that the dog is always in contact. If you have multiple dogs, make sure to also schedule regular checkups with them. Ending2: [title] Set up an emergency appointment with your vet. [step] Veterinarian visits tend to be less costly. Ending3: Make sure you take your dog in for a checkup with the veterinarian one or more times per year, depending on their age. [substeps] If your dog is under seven years old, schedule a checkup once per year. Ending4: Your vet will also be able to check your dog's general health. [substeps] If you're traveling with your vet, it's essential you stay in contact them often.

Answer format: ending1/ending2/ending3/ending4