(D) Mr. Mike was a young man. He was not very rich. One day he went into a watch shop to buy a nice watch for his girl friend, Rose. He fixed his eyes on a nice gold watch, and decided to buy it. The shop assistant took the watch out, and asked for three hundred pounds for it. Just then, a boy of about fifteen suddenly rushed over and grasped the watch from the assistant’s hand. The assistant hurried out to catch the boy. But it was too late, the boy had disappeared among the street people very quickly. On the way home, Mike met the boy, who would sell him the gold watch for only one hundred pounds. “The boy didn’t know that I saw him stealing the watch from the shop. And he asked for much less money than that in the shop.” Mike thought to himself. So he paid the boy and took the watch home. The next day, Mike gave the golden watch to Rose, and told her all about the watch. Rose looked at the watch for a while, then, laughed loudly, “You are really a fool!” she said, “This watch isn’t worth 100 pounds at all. The assistant and the boy must have planned the whole thing together.”