18. You're a project manager on an industrial design project. You've set up a reward system, but you're surprised to find out that the team is actually less motivated than before. You realize that it's because your rewards are impossible to achieve, so the team doesn't expect to ever get them. What motivational theory does this demonstrate? A. Herzberg's Hygiene Theory B. Maslow's Hierarchy of Needs C. MacGregor's Theory of X and Y D. Expectancy Theory