Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to administer insulin to a cat [title] Follow the storage instructions on the label. [step] Your insulin will come with detailed directions on proper storage and handling. Make sure to familiarize yourself with these directions, and ask your vet if you have any questions.

Ending1: [title] Retrieve an insulin syringe from the can and administer the insulin. [step] While the type of insulin injection for most cats will be restricted by diseases, most veterinarians recommend using a syringe. Ending2: [substeps] The battery is usually stored in the tray. If your cat does not have one, then there is a chance he already has an insulin canister. Ending3: [title] Refrigerate your insulin until you are ready to use it. [step] Insulin will deteriorate and become ineffective if it is exposed to heat. Ending4: [substeps] You can have an adult pick your cat up and feed it the insulin, or you can keep it on its own. [title] Provide sufficient insulin to maintain the cat's health.

Answer format: ending1/ending2/ending3/ending4