Which is the best topic sentence of the following passage? Unlike some breeds of dogs, they do not need a lot of exercises every day. Crowds and loud noises do not make them nervous. Also, they do not mind being alone for hours, if you need to be away at work.¬†On top of all this, they are known to be patient and loving with children. If you are a city-dwelling family looking for a pet, I highly recommend this breed of dog.
A. Greyhounds are a good choice for dog for people who live in cities. B. Every family should have a dog. C. Not all dogs are happy living in the city. D. All breed of dogs are pretty much like -- its all the same.