What is exponential growth?​

Read the passage: canines may not be the deepest thinkers in the world. but perhaps that's for the best. the life of a dog—sitting alone all day, waiting for everyone to come home—can be pretty boring. super-smart animals would probably get totally stressed out, says university of pennsylvania researcher james serpell. look at it this way: if dogs were any smarter, they probably wouldn't choose to hang around with us. which best describes the tone of the passage?

Iwill give you 90 points read this entry from a blog about service dogs.lexie, an eight-month-old black labrador retriever, is sleeping quietly at my feet. i can’t but think that her soft, velvety ears and alert brown eyes would make her the perfect “doggie model” for pet magazines and pet store ads. however, lexie will soon have a much more important job to do. in a few months, she will become the loyal companion and service dog for a young man who has been blind since birth. she will him board public transportation, such as buses, subways, and trains, and she will him safely cross busy intersections. lexie will even the young man avoid obstacles, such as high curbs and low overhangs. like all dogs in our organization, lexie has undergone months of specialized training to a visually impaired person lead an active and independent life.what is the primary purpose of this blog? to inform readers about seeing-eye dogsto entertain readers with stories about lexieto persuade readers to support service dogsto convince readers to adopt seeing-eye dogs

Based on the information in the passage, what conclusion can the reader make?