Effective supervision is an activity of

The correct answer is C. direction function.

Supervision is the process of overseeing and directing the work of others. It is an essential part of management, and it is necessary to ensure that work is done effectively and efficiently.

The direction function of management is concerned with setting goals and objectives, planning and organizing work, and directing and motivating employees. Effective supervision is an important part of the direction function, as it helps to ensure that employees understand their roles and responsibilities, and that they are working towards the organization's goals.

The other options are incorrect because they are not directly related to the direction function of management.

• Organization function is concerned with the design and structure of the organization.
• Staffing function is concerned with the recruitment, selection, and placement of employees.
• Control function is concerned with monitoring and evaluating performance, and taking corrective action as necessary.

In conclusion, effective supervision is an activity of the direction function of management. It is essential to ensure that work is done effectively and efficiently.