Final answer:
Hersey and Blanchard's concepts are most aligned with Situational Leadership. It suggests that leaders should adjust their leadership style based on the situation and the competence and commitment of their followers.
Step-by-step explanation:
Hersey and Blanchard's concepts are most aligned with d. Situational Leadership. Situational leadership theory proposes that effective leadership depends on the readiness level of the followers. It suggests that leaders should adjust their leadership style based on the situation and the competence and commitment of their followers. This approach is consistent with the situational leadership theory developed by Hersey and Blanchard.