阅读短文，从所给的选项中选择四个句子完成短文，使其文理通顺。（有一项多余）
Imagine a normal day: you go to work, return home, and maybe buy somethings on your way home.. For a large number of people, the answer to that question is zero.
Ever since the Industrial Revolution（工业革命）began, many changes have taken place in our world..
Want to buy a pair of shoes? An MP3 player? A book? It’s only a few clicks(点击) away. Need a computer? A gift? A tennis racket? Click. No need to even leave your house.And the quality of crops that are grown and harvested(收割) by computers is getting better.
You are probably booking (预定) your hotel room online. When can we choose our own rooms and get our keys by ourselves? We also hope that everything we want to buy at the supermarket will be ready for us when we arrive.Researchers have already designed a robot to correctly find your preferred beer and bring it to you.
Will human jobs be completely done by robots? We don’t know. But computers are doing more and more jobs for humans.
How many examples of ways of doing things does the author pick up to show the advantages of computers?
A. Five.  B. Four.  C. Six.  D. Three.

A. On the farm, machines are used, and more and more farm jobs can be done by machines. B. In a factory, workers are busy making products. C. Many jobs done by humans in the past are now being done by technology(技术) instead. D. How many people do you have to talk with to do those everyday tasks? E. In fact, a restaurant in China recently started using some robots to serve people.