In a business hierarchy, the level that is responsible for monitoring the daily activities of the business is:

Operational management is the level of management that focuses on overseeing the daily activities and functions of a business organization. This level is responsible for ensuring that everything runs smoothly on a day-to-day basis, which includes managing staff, coordinating tasks, and addressing any immediate issues that arise. Operational managers play a crucial role in implementing the company's strategies and goals by managing resources efficiently.

This level of management is hands-on, working closely with the front-line employees to ensure that operations align with the organization’s objectives. Their focus is primarily on the effective execution of tasks and maintaining productivity, making them key players in the operational success of the business.

In contrast, middle management typically has a broader focus that encompasses both strategic planning and the supervision of operational managers, while service workers and production management are more focused on specific roles and tasks within the larger operational structure.