Final answer:
The line of authority in an organization is the chain of command extending from the top to the bottom of an organization, ensuring efficient and effective task assignment and execution.
Step-by-step explanation:
The line of authority in an organization is the chain of command extending from the top to the bottom of an organization. This means that employees receive orders from only one superior, creating a reporting relationship. For example, in a retail store, a sales associate receives orders from their department manager, who receives orders from the store manager, and so on. This hierarchy of authority ensures that tasks are assigned, communicated, and executed efficiently and effectively.