The process by which managers synchronizes the activity of different department is called:

Coordination

The correct answer is option 4- Coordination.

An organisation is a system made up of different interlinked and interdependent subsystems. A manager has to link these diverse groups towards the achievement of a common goal. The process by which a manager synchronises the activities of different departments is known as coordination. Coordination is the force that binds all the other functions of management.