What was Cathy’s job? She was a ______.

Miss Yang from China worked as a secretary in a Canadian company. She became friendly with one of the Canadian secretaries, a woman named Cathy Lane. They two usually ate lunch together and Yang often asked Cathy for advice on problems she faced about Canadian society. Cathy gave her a lot of advice and helped her move from one apartment to another. Yang visited Cathy several times at home but she did not invite Cathy to her apartment, because she shared it with four other people. If they did not see each other over the weekend, they usually talked on the telephone.
   However, recently something seemed to be going wrong. Cathy seemed to be getting impatient. She started going out by herself at lunchtime instead of eating with Yang, and she seemed unwilling to answer questions. Yang was puzzled. She couldn’t imagine what the problem was.
   11. Q: What was Cathy’s job?