In the Context of the Nine Keys of Leadership Success

In the context of the nine keys of leadership success, which of the following best describes the multiplication key?

A) A leader's use of principles and techniques for effective delegation, giving orders, and tapping the potential of all types of followers
B) A leader's ability to develop others and bring out their best in personal growth and job performance, including the ability to lead people through change and maintain adaptive capacity
C) The interaction among leadership qualities, the characteristics of followers, and the nature of the situation
D) The importance of ethics, including the character of the leader-honor, honesty, courage, and other related qualities