Tom was a poor boy. He made a living by cleaning leather shoes for others in the street. Tom was also a clever boy. One day, a very rich man with the name Miser appeared in front of Tom. He watched his dirty shoes for a while, and then looked at Tom. Tom knew this kind of people well: they love money very much and hate to spend it. Tom said, "Let me clean your shoes, sir." "For nothing?" the rich man asked. "Only two pence, sir." Mr Miser shook his head and walked away. Tom thought for a moment and then called out, "I'd like to clean it for nothing!" This time Mr Miser agreed. And soon one of his shoes was shining brightly. When the rich man put his other shoe on the stool , Tom said he wouldn't clean it for him unless he was paid two pence for his work. Mr Miser was very angry. He refused to pay anything and went away with a smile on his face. But to his surprise, the well-cleaned shoe was so bright that it made the other one look even dirtier. Mr Miser took a look around. People in the street were laughing at him. He couldn't walk on any further. Finally the rich man returned and gave Tom two pence. In a very short time his two shoes shone brightly. Which of the following is true? A) The boy was waiting for the rich man that day. B) Mr. Miser didn't want to have his shoes cleaned. C) The rich man won at last. D) The rich man had to pay the boy for his work.
A:
D