Final answer:
Leaders with an avoiding conflict management style likely display high levels of cooperation, as they prefer to maintain harmony and may work to find common ground.
Step-by-step explanation:
Leaders with an avoiding conflict management style are more likely to exhibit E. high levels of cooperation. Avoidance as a conflict management style often involves a deliberate decision to not engage in conflict or to defer it. Such leaders tend to prioritize harmony and may work to find common grounds to maintain a cooperative environment. This style can sometimes lead to unresolved issues and may not always be effective, especially when decisive action is needed.
On the other hand, leaders with high assertiveness or a win-at-all-costs attitude are usually more confrontational and are willing to engage in conflict to achieve their objectives. Ethical behaviour and ethical complacency are not directly related to conflict avoidance but are more associated with a leader's moral principles and values, whereas ethical complacency can refer to a lack of ethical engagement but not specifically to conflict management approaches.