article: A man had a little dog , and he liked it a lot . He would pat its head , put it on his knee and talk to it . Then he would give it some food from his own plate .
  A donkey looked in through the window and saw the man and the dog .
  " Why doesn't he choose me as his pet ? " said the donkey . "It is not fair . I work hard , and the dog only shakes its tail , barks and jumps onto the master's knee . It is not fair. "
  Then the donkey said to himself, " If I do what the dog does , the master may choose me as his pet . "
  So the donkey ran into the room. He brayed at the top of his voice . He shook his tail so hard that he knocked over a jar on the table. Then he tried to jump onto the master's knee.
  The master thought the donkey was _ , and he shouted, " Help ! Help! "
  Some men came running in with sticks in their hands and they beat the donkey until he ran out of the house.
  " I only did what the dog did , " said the donkey , " and yet they still regard the dog as their pet and they beat me with sticks . It is not fair . "
question: The donkey did what the dog did because   _   .
options: he wanted his master to choose him as a pet he wanted his master to give him food he wanted to make his master angry he wanted to turn into a dog