Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to raise ferrets together [title] Pick out a bonded pair. [step] If you're purchasing or adopting multiple ferrets at once, visit a pet store or shelter to choose a bonded pair. These ferrets will already get along, so you won't have to deal with introductions or socialization issues.

Ending1: [title] Choose a ferret that is relatively small. [step] Ferrets love to burrow and sleep together. Ending2: Ask an associate to point out ferrets that are already bonded. [substeps] If you can't find anyone knowledgeable about the ferrets at a facility, look for a pair that's cuddling or playing together. Ending3: They're actually, but not always, good pets. Therefore, make sure to pick out a pair you're happy with. Ending4: [title] Have them certified as " legal ferrets. [step] Ferrets should be certified as " legal " or even " registered ferrets " before they can be adopted into a home.

Answer format: ending1/ending2/ending3/ending4