Which One of the Following Is a Good Motivation Guideline

Multiple Choice

Which one of the following is a good motivation guideline to be adopted by sales managers?

A) Attempt to use a mix of external rewards and internal satisfaction.
B) Recognize that external motivation has almost no impact on performance.
C) Use external motivation methods exclusively.
D) Recognize that creating the conditions for internal motivation is very difficult.
E) Always discuss performance in public.