Harold is the project manager for his organization. He believes that project teams can be selfled and want to accomplish the project as long as they understand the work they are to complete. Harold believes in challenging the project team and pressing their abilities to learn and do more. What management theory does Harold most likely believe in?

A. Herzberg’s theory of motivation B. Maslow’s hierarchy of needs C. McGregor’s Theory X and Theory Y D. Vroom’s expectancy theory