involves synchronisation of the different actions or efforts of the various units of an organization by providing the requisite amount, quality, timing and sequence of efforts which ensures that planned objectives are achieved with a minimum of conflict.

The correct option is Coordination.

Explanation:
Coordination is the process that binds all the other functions of management. It involves synchronizing the activities, decisions, and efforts of various departments and individuals within an organization. By aligning the timing, quality, and sequence of these efforts, coordination ensures that the diverse units work harmoniously toward common organizational goals, minimizing conflicts and overlaps.

Let's analyze why other options are incorrect in this context:

• Planning: It is the primary function of management that involves deciding in advance what to do, how to do it, when to do it, and who is to do it. It sets the objectives but does not itself synchronize ongoing actions.
• Organising: This function focuses on structuring resources, defining roles, and establishing authority-responsibility relationships to execute plans.
• Controlling: This involves monitoring organizational performance against established standards and taking corrective actions when deviations occur.