Write a multi-choice question for the following article: Article: David Moore taught science at the City School.He needed some expensive books,so he bought them.He put the books in his car in a quiet street.Then he went to other shops to buy something else.At six he came back to the car.One door was open--and the books were not there.David drove home. That night he wrote a letter to a newspaper.The next day he went to the police station. On Friday people read this in the newspaper: Books: Have you any old books? I buy old and modern books. Open all day on Saturday.Dauid Moore.26 Fry Road. David stayed at home on Saturday.The first mall came at eight.David took him to the kitchen.At half past nine another man arrived.He had a bag under his arm. "Mr.Moore?"the man asked. "That's right,"David said."Can I help you?" "I've got some good books.You buy books,don't you?" "Yes.Bring them in. Let me have a look." Soon the books were on the dining-table."Come in now."David called,"and bring the list." A policeman came into the dining-room.He read the names on the books and the names on the list in his hand.They were the same. "Come with me.Sir."the policeman said to the man.
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Question: The first man to David's home was a _ .Options:A thiefB policemanC driverD cookAnswer:B