Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to adopt a dog [title] Research breeds. [step] Different dog breeds have different personalities and different needs. Research different breed types and find the breeds that you will best be able to care for.

Ending1: [substeps] If you are not sure what breed to adopt, ask a breeder if you can share your feelings with a single home organization. Many shelter organizations or dog rescue organizations will have dog adoption programs on hand. Ending2: There are a number of online resources as well as books and magazines dedicated to different dog breeds to help you in your search. [substeps] Match the breed to your activity level. Ending3: Your pet will most likely respond to the same temperament, such as a normal adult dog, but you may need a different breed to provide important life adjustments. Consider the qualities your pet has that would be important to you, such as aggressive behavior. Ending4: Knowing what breed you want in your new dog can help you decide if you are ready for a training program. [substeps] When choosing a dog, don't keep a dog by yourself.

Answer format: ending1/ending2/ending3/ending4