Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to help a dog recover from a broken leg [title] Evaluate the dog for more severe injuries. [step] If you see your dog limping, take a look to see which leg is injured. Do a slow, careful examination of the injured leg.

Ending1: [substeps] Extend your arm out to your dog. Consider the motions (for a dog with a broken leg). Ending2: Also ask questions about the dog's gait. Talk to your vet about what evidence he or she thinks may be the cause of his or her injury. Ending3: The broken leg could be really obvious, such as an exposed, open fracture. In this case, you'll need to keep the wound clean. Ending4: Watch to see if there are any injuries that may warrant medical attention. [substeps] Infrequent leg injuries also may warrant medical attention.

Answer format: ending1/ending2/ending3/ending4