What Might Be the Common Link Between the Ideas of Authentic

What might be the common link between the ideas of authentic, spiritual, and ethical leadership theories?

A) These leadership theories have developed from observations of the success of large organizations such as Enron, Lehman Brothers, Northern Rock, and RBS.
B) These ways of thinking about leadership have led to the growing trust in corporations said to be evidence of a growing satisfaction of the leadership of key social organizations.
C) These ways of thinking about leadership have come to the corporations have led some to question the underpinning paradigms that govern our economic system
D) These leadership theories have corporations has led some to question the underpinning paradigms that govern our economic system.