Which of the following is part of the fourteen leadership traits?

Decisiveness is indeed one of the fourteen leadership traits identified for effective leadership within the Marine Corps. This trait emphasizes the ability to make choices promptly and confidently, which is crucial in military situations where swift decision-making can significantly impact outcomes. A decisive leader will analyze information, consult with the necessary personnel, and arrive at a conclusion that will guide their team toward achieving mission objectives. Effective leadership requires clarity and conviction in decision-making, setting the tone for operations and instilling confidence within a unit.

The other selections, such as selfishness, pessimism, and ignorance, do not align with the values and standards expected of leaders in the Marine Corps. Selfishness is contrary to the team-oriented spirit essential in military operations, while pessimism undermines morale and can dissuade unit effectiveness. Ignorance, or a lack of knowledge, contradicts the expectation that leaders must be well-informed and capable to guide their teams effectively. Thus, the emphasis on decisiveness highlights the importance of strong, informed leadership in achieving success during missions.