Mark has worked for 10 years in several departments (all in creative units) at Performance Horizons. He likes to move around, he says, to keep from being bored. His co-workers say he does it so that he won’t get entrenched in one spot or stuck with one way of doing things. He takes pride in his work, which is always top-class. And he frequently comes up with unusual ways of doing things. Mark is seldom in his office. He might be in the lab, the art room, or meeting with people in their offices. No one is quite sure how he does it, but his productivity is quite high. Mark rarely shows up at company events. He does like to send people electronic mail, though, on his new ideas. 

Which two of the four motivates Mark the most?

      

Need	Why?