According to the PMBOK® Guide (specifically within the Develop Team process), the design of a recognition and reward system is critical to fostering a collaborative environment.

Win-lose rewards (also known as individual competitive rewards) are those where only a limited number of team members can achieve the reward, often at the expense of their colleagues. For example, naming an " Employee of the Month " can create a competitive atmosphere that discourages knowledge sharing and mutual support.

Impact on Cohesiveness: These rewards tend to hurt team cohesiveness because they pit team members against one another. If one person winning means another must lose, the incentive to collaborate on shared project goals is diminished, and internal competition replaces collective problem-solving.

PMI Recommendation: To foster a high-performing team, project managers should focus on win-win rewards—those that recognize the entire team ' s achievement of a milestone or objective. This reinforces the idea that everyone succeeds together.

Choice A, C, and D: These are not standard PMI terms regarding team motivation and reward systems. " Win-lose " is the specific terminology used in project management literature to describe zero-sum reward structures that damage team synergy.