Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to determine if you should euthanize your dog [title] Assess your dog's bodily condition. [step] You may want to consider euthanizing a dog that is withering away and is losing its ability to move. Loss of mobility and excessive weight loss are signs that your dog's body is shutting down.

Ending1: [substeps] If your dog has simply lost a lot of weight, which can be scary, its body might not begin to process as much effort when you kill it. Therefore, the decision to euthanize your dog is ultimately up to you but it needs to be made by you. Ending2: Understanding how your dog's body will adapt to this change will give you an idea of whether or not to euthanize it. [title] Evaluate the extent of the abuse and the severity of the injury. Ending3: [substeps] If you decide to euthanize your dog you have some grounds for concern. The dog's owner may be wasting his money that you cannot afford. Ending4: As your dog loses weight and loses the ability to move, its quality of life also suffers. [substeps] Discuss the reasons for weight loss with your veterinarian.

Answer format: ending1/ending2/ending3/ending4