Which of the following statements best characterizes the research findings on trait-based approaches to leadership theory?
(A) Intelligence, high energy and initiative are proven to be the necessary and sufficient set of characteristics for effective leadership
(B) Leadership traits are based on nature, not nurture; so leaders are born, not made
(C) No one set of traits has been established as being necessary and sufficient for effective leadership behavior
(D) Personality traits of leaders are irrelevant to their effectiveness in their leadership roles
