单项选择题

Jack is working in a factory. The factory is far away from his home. One day, he missed his wife and wanted to send a letter to her. But he could not read or write. In the daytime he had to work hard to get money. So-only when it was late at night he could find someone to write his letter. At last he found a letter writer. His name was Carter.
One night, Carter was already in bed because it was too late. "What do you want me to do" he said. "I want you to write a letter to my wife." said Jack. Carter was not happy. He thought for a while and then said, "Does the letter have to go far" "What does it matter (关系)" answered Jack.
"Well, my writing is so difficult that only I can read it. And if I have to walk a long way to read your letter to your wife, it will cost (花费) you a lot of money." Jack went away quickly. Was the letter writer willing to write for Jack

A.Yes, he was pleased to write for Jack.
B.No, he was tired.
C.No, he was in bed already.