Which of the Following Is the Least Effective Opening Statement

Multiple Choice

Which of the following is the least effective opening statement for an unsolicited sales letter?

A) Last month, one million business travelers enjoyed the friendly, on-time service of Alpha Beta Airlines. (promoting new services for corporate customers)
B) If you and your family drink one gallon of water a day, you may be consuming too many minerals. (promoting a water purifier system)
C) Are you interested in leading a long and happy life? (promoting a new exercise program)
D) How much extra money would you have if you didn't have to pay 21% interest on your credit cards? (promoting a new credit card)
E) Six months ago, he was unemployed with few qualifications. Today, he's a website designer for a major corporation. (promoting training courses in website development)