Jillian Cho Sells a Line of Copy Machines That Feature

Jillian Cho sells a line of copy machines that feature a "quick change" toner cartridge. The empty cartridge can be replaced quickly, without any mess, in a matter of seconds. Which of the following statements represents the most effective presentation of this feature?

A) "After years of research and development, our engineers developed the quick change toner cartridge."
B) "Our copy machines are better than the ones made by competition."
C) "If you purchase one of our copy machines, you will enjoy the benefits of a quick change toner cartridge."
D) "We have recently developed the only office copy machine that features a quick change toner cartridge."
E) "All of our copy machines are equipped with the quick change toner cartridge which means you no longer waste time replacing an empty toner cartridge."