Which of the Following Are Good Principles All Professional Sales

Multiple Choice

Which of the following are good principles all professional sales people should follow?

A) keep your clients' interests front and center in all your activities
B) provide service "above and beyond the call of duty"
C) work as hard; satisfying existing customers as you do prospect
D) "the customer is always right" mantra is a good general rule to follow
E) all of these choices are correct