Step 1: Understanding the Concept:
Leadership is one of the four essential elements of the Directing function of management.
It is an art or process of influencing followers so that they perform their tasks willingly.
Unlike formal authority, which might "force" an employee to work due to the fear of punishment, leadership inspires an employee to work because they {want} to contribute.
Step 2: Detailed Explanation:
The provided definition emphasizes several critical points about Leadership:
1. Process of Influencing: Leadership is interpersonal. It involves a leader changing the attitudes, beliefs, and behaviors of followers through their personality, charisma, or competence.
2. Strive Voluntarily: This is the key phrase. True leadership creates "willingness." When people strive voluntarily, they put in extra effort, are more creative, and are more committed to the outcome. This is the difference between a "boss" and a "leader."
3. Goal Alignment: The influence is directed toward achieving the organization's goals. A leader ensures that the followers' individual energy is channeled into collective success.
Analysis of other options:
- Motivation (A): Is about the {incitement} through needs. While a leader must motivate, the "influencing behavior" and "voluntarily striving" part is the classic definition of leadership itself.
- Supervision (B): Is about {directing} and {watching} work. It is more formal and administrative.
- Communication (D): Is the transmission of meaning, which is a tool for the leader, not the process itself.
Therefore, Option (C) perfectly fits the definition provided in the question.
Step 4: Final Answer:
The process that involves influencing behavior and encouraging voluntary effort is Leadership. Thus, (C) is the correct option.