Advertisement: Our competitors' computer salespeople are paid according to the value of the products they sell, so they have a financial incentive to convince you to buy the most expensive units—whether you need them or not. But here at Comput-o-Mart, our salespeople are paid a salary that is not dependent on the value of their sales, so they won't try to tell you what to buy. That means when you buy a computer at Comput-o-Mart, you can be sure you're not paying for computing capabilities you don't need.
Which of the following would, if true, most weaken the advertisement's reasoning?
A. Some less-expensive computers actually have greater computing power than more expensive ones.
B. Salespeople who have a financial incentive to make sales generally provide more attentive service than do other salespeople.
C. Extended warranties purchased for less-expensive computers can cost nearly as much as the purchase price of the computer.
D. Comput-o-Mart is open only limited hours, which makes it more difficult for many shoppers to buy computers there than at other retail stores.
E. Comput-o-Mart does not sell any computers that support only basic computing.