Which type of work complexity can influence the span of control at lower levels?

The correct choice revolves around the concept of interdependency of tasks, which significantly affects the span of control at lower levels of supervision. When tasks are highly interdependent, it means that the completion of one task relies on the completion of another. This interconnectedness requires closer supervision and coordination among personnel, as the supervisor must ensure that all members are aligned in their responsibilities and timelines.

In a scenario where tasks are interdependent, a supervisor may find it challenging to oversee a large number of subordinates effectively. The complexity increases as the supervisor needs to facilitate communication, resolve conflicts, and manage the flow of work between tasks. This often necessitates a smaller span of control so that the supervisor can provide adequate guidance and support to ensure that interdependent tasks are executed smoothly and efficiently.

In contrast, when tasks are less interdependent, a supervisor might more easily manage a larger group, as the execution of one task does not significantly impact others. Thus, understanding the nature of task interdependency is crucial for determining how many employees one supervisor can effectively oversee, making it a pivotal factor in work complexity and the span of control.