【正确答案】 A

【答案解析】[听力原文]
   W: I'm thinking of switching cell phone carriers. Which one are you using?
   M: I used to subscribe to A-1. I was with them for only three months and then I switched to NetTrac. Best decision I ever made. A-1 had unquestionably the worst customer service I've ever experienced.
   W: Really? I heard that they were one of the best for the money. What happened to you?
   M: I called them about a charge dispute on my bill, and they kept me on hold for one hour. I used up all my remaining minutes just waiting for a solution to my problem. When I finally reached a customer representative, he was quite rude while I was complaining about being kept on hold for so long.
选项A正确，女士正考虑换掉目前的移动运营商。选项B错误，她没有提到要买新手机。选项C错误，她没有提到要取消手机，只是要换掉运营商。选项D错误，抱怨服务不好的是男士。