阅读下面短文,从短文后所给的 A、B、C 三个选项中选出能填入相应空白处的最佳选项。
A wise man was on his long journey with a young man. Night was falling so they decided to find a place to stay. They searched for a long time and at last found a tiny old house. A1 family lived in it. They gave the two visitors a warm welcome and prepared a simple 2 for them including fresh milk and cheese.
After the meal, the wise man asked how they made a living in such a poor place. In a low voice the husband replied, "We have a 3. We sell her milk to our neighbors and keep some for 4own needs-make some cheese and cream. "
The next morning, the two visitors continued their 5. After they walked a few miles, the wise man said to the young man, "Go back and push the cow off the cliff (悬崖). "Why? Without the cow, they will have nothing. " The wise man repeated his order, "Go back and 6 the cow. "
The young man was worried about the future of the family. But 7 he returned to the old house and did as the wise man told him.
A few years later, the young man travelled on the same` road. He decided to visit the family again. To his surprise, he saw a large house with a beautiful garden there.
He knocked on, the door and-a well-dressed man answered it. He was; the son of the family.
The man invited him to enter the house and told him 8 their life changed. "You know, we had 9 but a cow to keep us alive years ago. But one day she fell off the cliff and died. We had to come up with new ways of making a living. You see, we are much 10than before. " At his words, the young man smiled.