According to the path-goal model, a subordinate who lacks self-confidence would respond best to:
a) directive leadership behavior to clarify the path to reward.
b) supportive leadership behavior to increase confidence.
c) achievement-oriented leadership to set high goals.
d) participative leadership to clarify the follower's needs

b) supportive leadership behavior to increase confidence

Explanation:

The path growth model also called as the theory of the leadership effectiveness developed by the Robert house. It states that leaders' behaviors are confined by the satisfaction, motivation and the performance of his subordinates and thus this model of leadership also forms a part of the instrumental leadership. Were the leader guides workers to choose the best path and reach their goals, hence the leader is a clarifying behavior, achievement-oriented,  and a participative and supportive leader.