The correct answer is C. directing.
Directing is the process of guiding and overseeing the efforts of assistants in order to attain administration’s objectives. It involves setting goals, providing instructions, and monitoring progress.
Planning is the process of setting goals and objectives, and developing strategies to achieve them. It involves identifying problems, gathering information, and developing alternative solutions.
Organizing is the process of creating a structure for an organization, and assigning tasks and responsibilities to employees. It involves developing a hierarchy of authority, and creating systems and procedures.
Controlling is the process of monitoring performance and making adjustments as needed. It involves setting standards, measuring performance, and taking corrective action.
In this case, the question is asking about the function that involves guiding and overseeing the efforts of assistants in order to attain administration’s objectives. This is the definition of directing. Therefore, the correct answer is C.