At the Law Offices of Hughes & Hughes,employees Are Encouraged

At the law offices of Hughes & Hughes,employees are encouraged to recycle cups used at the water cooler and turn off office lights when not in use.John Hughes,the owner and manager of the firm,leads by example and often completes his paperwork using natural light.John utilizes which of the following characteristics of good business leaders?

A) Vision
B) Commitment
C) Eloquence
D) Articulation of the business model
E) Emotional intelligence