At the top level of organizations, what is the span and control number of subordinates that can be effectively supervised by one supervisor?

The correct answer signifies that a supervisor can effectively manage between nine to eleven subordinates at the top organizational level. This range is supported by management theories which suggest that as the complexity and responsibility of the tasks increase at higher levels of management, the number of direct reports a supervisor can effectively manage tends to widen but doesn't exceed a certain threshold for efficiency.

In this context, managing nine to eleven subordinates allows for a balance where supervisors can provide adequate attention, direction, and support needed without becoming overwhelmed. This range also facilitates sufficient communication and oversight, which are crucial at top levels of management where strategic decision-making and higher-level problem-solving are typical.

Understanding the correct range allows organizations to optimize their structure for better communication and effectiveness, ensuring that managers are not so overloaded that they cannot perform their essential duties.