Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to diagnose bone diseases in growing dogs [title] Notice any limping. [step] Limping is one of the most recognizable signs that your dog is experiencing pain. You might notice that your dog is favoring one leg rather than distributing their weight evenly, or they may hold up a paw to avoid putting weight on it.

Ending1: [substeps] Limping should happen on their side, not their back. Think about if your dog is limping because they are trying to prevent or protect themselves from pain. Ending2: [substeps] Watch for limping in the hind legs, or on the lower legs. [title] Observe the dog for any weight imbalances. Ending3: [substeps] Limping can either come about suddenly or develop over a period of time. The sooner you recognize that your dog is limping, the faster they can receive treatment. Ending4: Pain associated with limping varies by breed. You should take your dog to be seen by its vet to go over any conditions that may be causing the limping.

Answer format: ending1/ending2/ending3/ending4