Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to greatly improve the life of a dog with arthritis [title] Place extra padding in your dog's bed. [step] Your dog may have a hard time being comfortable in their bed with joints that are stiff and painful because of arthritis. Putting some extra padding in the bed will make life a little better for your dog.

Ending1: [substeps] Padding may be purchased at your local pet store or online. You may even look for surface padding that denotes a hard surface like some leather pads. Ending2: [substeps] For extra padding, add some extra thick blankets on top of or below the bed. You could also purchase foam pads at your local pet store. Ending3: [substeps] To find padding, reach out to your pet and pet it, really giving him or her a treat. Some small treats, such as a piece of tasty, blue wafer, can be even more effective than just regular dog biscuits. Ending4: [substeps] The padding can be any color, shape, or material. Buy dog blankets, ball socks, or foam stuffed toys.

Answer format: ending1/ending2/ending3/ending4