While Writing a Sales Message, You Are Trying to Come

While writing a sales message, you are trying to come up with an effective opening. Which sentence would be most effective?

A) Our newest copier, model XK244, has many more functions than the model it replaces.
B) Office Depot and Staples both report that they sell more of our new model XK244 photocopiers than any other make or model and that it receives high customer approval ratings.
C) I hope you find the information in this letter interesting.
D) I am certain that your company would like to reduce photocopy costs.