Choose the word which is different from the rest.

The answer is: B. House

A kennel is a building or enclosure where dogs are kept. A stable is a building or enclosure where horses are kept. An aviary is a building or enclosure where birds are kept. An aquarium is a tank or other container where fish and other aquatic animals are kept. A house is a building for human habitation.

The word “house” is different from the rest because it is the only one that is not specifically for keeping animals. The other words are all specifically for keeping animals of a particular type.