This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to raise ferrets together
Pick out a bonded pair.
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.

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