Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to care for your gun dog [title] Schedule regular vet appointments. [step] Most dogs should have veterinary checkups at least once each year, but with hunting dogs, you may need semi-annual checkups. Hunting dogs are often exposed to the elements, insects, and a high risk of injury out in the field.

Ending1: Because of these risks, it's important to keep an eye on your dog's health and condition. [substeps] Be sure your dog is up to date on all of his vaccinations. Ending2: Before you bring your dog into the field, make sure that the breed is comfortable with the outdoors. [title] Plan your pet's veterinary visits. Ending3: It can be pretty easy to be careless when out in the field, leading to your dog getting torn up or scratched. [substeps] Bring along a warm dog carrier if you intend to take your pet to appointments while at home. Ending4: They're also at high risk of developing compromised immune systems, which is exacerbated by stress and stresses. [title] Use a dog-friendly cleaning product.

Answer format: ending1/ending2/ending3/ending4