There was a young man named Bill in England. Before leaving school, he began to look for a job as a clerk. Few companies needed new clerks due to the financial crisis at that time. It became harder and harder to find a job. Luckily, a chance camp up to him. A company wanted to employ one person. He and the other twenty people joined in the first interview. After that, three persons were allowed to enter the final test which would decide one person to be employed in the end. Bill was lucky to be among them. On the day of the second interview, Bill and the others arrived at the company on time. To their surprise, the interview was very easy. The interviewer only had a free talk with them, and then asked them to go back home waiting for the result. The next morning, Bill received a letter from the company which said he wasn't accepted. Certainly, he felt disappointed. On the evening of that day, Bill surprisingly received another letter, which said he was employed. But why was he accepted? As a matter of fact, the first letter sent to Bill was also part of the test. Every one of them got a letter which had the same meaning that morning. Only Bill replied with "Thank you" while the others said nothing. Life isn't all fun. There is always something making us unhappy. When you feel disappointed, please say "Thank you" to the person who disappoints you. That shows your great generosity  and politeness to others. If you do so, you'll have more chances than others. Which statement is TRUE according to the passage?
Few companies needed clerks even if they were skilled. The whole test includes three parts. The last three persons all felt disappointed at last. They replied with "Thank you" after receiving the first letter.