The principle seeks to ensure unity of action is

The correct answer is: A. Unity of direction.

Unity of direction is a management principle that states that there should be one head and one plan for a group of activities having the same objective. This principle is based on the idea that unity of effort is essential for effective performance.

The other options are:

• Unity of command: This principle states that each employee should receive orders from only one superior. This is important to ensure that employees are clear about who they are responsible to and that there is no confusion about who is in charge.
• Centralization: This principle refers to the degree to which decision-making authority is concentrated at the top of an organization. A centralized organization has a lot of decision-making power concentrated in the hands of a few people, while a decentralized organization has decision-making power spread out among many people.
• Scalar chain: This principle refers to the chain of authority that runs from the top of an organization to the bottom. The scalar chain is important because it ensures that orders and information flow smoothly up and down the organization.