阅读下面短文，从各小题所给的四个选项中选出最佳选项。
One young person, who was well educated, went for a job as a manager in a big company. The president did the final 1 .
He discovered the youth was 2 and felt satisfied. Then the president asked who paid for his school fees. The youth answered, "My mother did it. She worked as a clothes 3."
The president requested the youth to 4 his hands. So the youth did. They were smooth. Then he asked, "Have you ever 5 your mother wash the clothes before?" The youth answered, "Never, my mother always wanted me to 6."
"Go and clean your mother's hands when you go back today, and then 7 me tomorrow morning," the president said at last.
The youth felt his chance of getting the job was high, so when he went back, he happilyrequested his mother to let him clean her hands. However, his tears fell 8 he cleaned his mother's hands slowly. It was the first time he had 9 that his mother's hands were so wrinkled (布满皱纹的). After that, the youth didn't say a word and washed all the remaining clothes for his mother10. That night, Mother and Son talked for a very long time, longer than any talk before.
The next11, the youth went to the president's office. The president noticed the tears in the youth's eyes and asked, "Please tell me how you 12 about helping your mother." The youth said, "Number One, I know now what appreciation is. Without my mother, I wouldn't be successful today. Number Two, by helping my mother, I realize how 13 it is to get something done. Number Three, I've come to realize the 14 of family relationship."
The president said, "You are 15. This is what I'm looking for to be my manager."
