What should be ensured during the operating hours according to the company's standards?

Ensuring high levels of cleanliness during operating hours is a critical aspect of maintaining the overall standards of the establishment. A clean environment not only meets health and safety regulations but also enhances the customer experience. Customers are more likely to choose a dining establishment that appears well-maintained and hygienic. Cleanliness extends beyond just the dining area; it includes food preparation areas, restrooms, and staff uniforms. By prioritizing cleanliness, the restaurant conveys respect for its customers and can help prevent the spread of foodborne illnesses, thereby protecting both patrons and the business's reputation.

The other options, while they may have their own importance, do not directly relate to the fundamental standards expected in daily operations. Frequent menu changes might not align with customer expectations for consistency. Maximum staff presence is important but should be balanced with efficiency and not overly focused upon. Lastly, extended hours of operation could lead to higher operating costs and may not always align with customer demand. The priority should always be to maintain a high standard of cleanliness, as it is foundational to the success of any food service operation.