Final answer:
In the upside-down pyramid mindset, 'Respectful' and 'Supportive' are the characteristics that promote effective management, as they foster a collaborative and inclusive work environment.
Step-by-step explanation:
In the upside-down pyramid mindset of leadership, the characteristics that would most likely result in effective management are d) Respectful and f) Supportive. An upside-down pyramid is a leadership approach that puts the needs of employees and customers at the top, with managers and leaders serving to support those needs, rather than dictating from above. This approach fosters a collaborative and inclusive environment.
By contrast, characteristics such as dictatorial, authoritarian, and domineering are often associated with a traditional top-down management style, where commands flow from the top and there is little room for input from lower levels.