In the Context of the Contingency Factor of Visibility, a Leader's

In the context of the contingency factor of visibility, a leader's ability to influence others increases when:

A) there are no substitutes for the rewards or resources the leader controls.
B) the leader's role is important and interdependent with others in the organization.
C) the leader has the freedom to make decisions without being restrained by rules.
D) others know about the leader and the resources he or she can provide.
E) rewards are used in a manipulative fashion.