根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。
Long long ago, a poor young boy lived in a small village. Every afternoon, he walked around the village selling his cooking oil to make money. He carried the 1 in a small wooden basin(盆).
After he sold out his oil, he was very tired. He thought that he 2 a rest.
He left his wooden basin on a stone, put the money in it and 3 asleep. About two hours later, he woke up. He looked into the basin and found that his money 4 gone.
He went at once to see a judge(法官). The judge listened to the boy's story very 5. She thought for a while and then said to the man in her office,“6 and get all the villagers here.”
When all the villagers came, she said that everyone should put a coin into a pail(桶) of water. About half of the people 7 their coins into the water before a young man came up. He also put his coin into the water. “Wait a minute,” the judge said, “You stole the boy's money, 8?” The young man's face 9 red. “Yes-yes-yes,” he said, “But how did you know that?” The judge explained, “You see, after you put your coin into the water, some oil came up to the top. Your money must 10 from the oil basin. Am I right?”