Final answer:
A good manager with good human skills possesses a c. high degree of emotional intelligence, which allows them to understand and manage their own emotions as well as empathize with others.
Step-by-step explanation:
A defining characteristic of a manager with good human skills is c. a high degree of emotional intelligence. Emotional intelligence refers to the ability to understand and manage one's own emotions and to recognize and empathize with the emotions of others.
This skill allows managers to effectively communicate, collaborate, and motivate their team members, fostering a positive and productive work environment.