Read the paragraph below. Then, carefully consider the following question and choose the best response.

Cats are allowed to roam just about wherever they please (try and stop them), and even dogs have the run of the house, or at least of a portion of the house. But the four sides of a small cage generally limit pet birds for most of their lives to the spaced defined. Yet birds are born to flap and swoop through wide spaces of sky, unlimited by walls or ceilings. To keep a creature born with wings in a small space, unable to use its major natural means of transportation, is unfair. People who want birds as pets should at least find ways to allow the birds to fly freely within one or two rooms of the house.

The primary purpose of this paragraph is to

inform the reader about birds and cats.

persuade the reader that it is wrong to cage a bird.

entertain the reader with images of animals.