Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to clean a terrier's ears [title] Get the right ingredients. [step] There are certain cleaners you should use to treat your dog's ear. Any you buy should be made specifically as an ear cleaner that is safe for dogs.

Ending1: To use a vet-made cleaner : [substeps] Mix two parts distilled white vinegar and two parts water in a spray bottle. Cover your dog's ear with a cloth or chew rubber band. Ending2: [substeps] For a saltwater ear cleaner, purchase a combination of salt water and vinegar. While it is not as effective as regular dog ear cleaners, it should be as effective as water and vinegar on your terrier's ears, that being said, they are quite expensive. Ending3: Look for products that have ingredients that will clean off dead cells and ceruminolytic properties, which help break up earwax. [substeps] They should also be mildly acidic to help kill bacteria and be able to evaporate quickly. Ending4: These include : [substeps] Essential oils essential essential oils [title] Purchase veterinary ear cleansers. [step] In order to get the required amount of ear care products, you should take your dog to a veterinarian.

Answer format: ending1/ending2/ending3/ending4