Which question concerns measuring leader effectiveness in terms of the leaders' contribution to the quality of group processes, as perceived by followers or outside observers?

A) Do followers like, respect, and admire the leader?
B) Have sales figures achieved by followers increased during the leader's tenure?
C) Are followers likely to resist or subvert the leader's requests?
D) Does the leader contribute to the efficiency of role specialization?

This question focuses on the leader's impact on group processes, specifically how they contribute to the efficiency of role specialization, which is a key aspect of group dynamics and processes. It assesses the leader's effectiveness in organizing and optimizing team roles for better performance, as perceived by followers or outside observers, rather than focusing on personal admiration (A), direct performance metrics like sales figures (B), or follower resistance (C).