Final answer:
D) vertical
The chain of command in a business is known as the vertical hierarchy of authority. It is a structured system where orders flow from higher levels to lower levels, ensuring clear lines of command.
Step-by-step explanation:
The chain of command within a business is referred to as the organization's vertical hierarchy of authority. This hierarchy is a system where authority and responsibility flow from the top down. A classic example is how an employee at Walmart may report to a shift manager, who then reports to a store manager, followed by a regional manager, and so on, up to the board members and stockholders. In a vertical hierarchy, there are clear lines of authority and a well-defined path of commands that maintain order and organization in the business.