Before You Can Roll Out the New Database System You

Before you can roll out the new database system you have designed, you need employees in departments across the company to volunteer to test it. You are drafting an email that will be sent to all employees to persuade them to help you with this testing.
-Which of the following would best emphasize an audience benefit if included in this message?

A) If you help test the system, I will really appreciate your efforts.
B) You should help out because it's the right thing to do.
C) Your help will result in a more efficient system that lets you do your job faster and more easily.
D) People who dedicate their time and efforts to helping out with this project will not regret it.
E) If you volunteer, you will help me reach my quota of testers and finish this phase of the project.