Which statement fits the Transformational Leadership style?

a$.$ This leadership style is based on the ability of the leader to motivate followers through their charisma, intellectual stimulation, and individual consideration.

b$.$ This leadership style is characterized by centralized control over employees.

c$.$ This leadership style makes employees responsible for most of the decisions that are made, and in which they are minimally supervised.

d$.$ This leadership style is both directive and controlling.