Which two factors widen the optimal span of control?

1. The greater the ability of the manager to delegate responsibility, the wider the span of control. 2. The higher the skill level and motivation of the workers, the wider the span of control. 3. Those two factors are the ones that push the span outward. 4. The more complex the task, the narrower the span. 5. The more locations there are, the narrower the span. 6. The more feedback and interaction required between workers and manager, the narrower the span, so every other option pairs two narrowing factors. _Source: OpenStax Introduction to Business (CC BY 4.0), Ch 7 "Designing Organizational Structures", section 7.5 Degree of Centralization_