Muhammad Is a New Divisional Manager

Muhammad is a new divisional manager. In reorganizing his division, he must make some decisions regarding the span of control for management within his division.
-In observing the departments in his division, Muhammad notices that some managers with wide spans of control seem to perform more effectively than other managers with similarly-sized spans of control. Which of the following statements is most likely true regarding the high-performing managers?

A) The employees within their departments have poor communication with each other.
B) These managers discourage employee autonomy, which produces more uniform departmental results.
C) The employees within their departments tend to compete to reach productivity goals, which boosts performance.
D) These managers are paid higher salaries than the low-performing managers.
E) The employees within their departments are highly skilled and very knowledgeable about their jobs.