Final answer:
If leadership is based on personal characteristics like intelligence and self-confidence, it aligns with the trait approach to leadership.
Step-by-step explanation:
If someone is selected as a leader because he or she possesses intelligence and self-confidence, a trait approach to leadership is being utilized. The trait theory of leadership assumes that certain physical, social, and personal characteristics are inherent to leaders. This stands in contrast to other leadership styles, such as transformational leadership, which is more about inspiring and stimulating followers to achieve extraordinary outcomes, and situational leadership, which proposes that leaders must adapt their style to the context and readiness level of their followers.