单项选择题

Is telemarketing fraud a new concept to you Some people learn it the hard way. I’ d like to share my experience with you and tell you how not to fall for it. The other day I got a phone call Offering me a" free" vacation-for which the person on the other end said that I had to send a processing fee. I didn’t jump at it. On another day, in my letterbox there was a postcard telling me that I had won a new car, but to get the car I needed to call with my credit card number to pay for shipping charges. It sounds like a dream-come-true. But all too often, these dream deals turn out to be nightmares.
Many people fall for the fast talk, send their money or give their credit card or bank account numbers, wait for employment information or plane tickets that never show up, and find themselves poorer-sometimes by hundreds, even thousands of dollars. Even people who are usually very careful about their finances can get hooked.
Telemarketing fraud is a very business. The problem is so widespread that more than 92 percent of Americans have received at least one postcard solicitation (请求). A congressional subcommittee has estimated that these kinds of crooked operations may rob people of as much as $ 40 billion a year.
Why so many victims These crooks have many ways to find you. Sometimes they buy phone numbers from other telemarkets. Or they buy magazine subscription lists to get the names of thousands of potential victims.
What is mainly talked about in the next part