Final answer:
The district manager's actions of monitoring daily sales reports and comparing them with projected sales goals, followed by taking corrective action, falls under the management function of 'controlling'.
Step-by-step explanation:
The function described in the question is controlling. In management, controlling involves monitoring performance, comparing it with goals, and taking corrective action as needed. The district manager is watching sales reports, comparing them with projected sales goals, and taking corrective action if the actual sales do not meet the expectations. This is a key aspect of management's control function which ensures that the organization's strategic goals are being met effectively and efficiently.
From the choices provided, 1) controlling is the correct function. This function is essential because it helps managers to detect and correct any deviations from the desired outcomes or goals. This can include adjustments in process, reassignment of resources, or reevaluation of strategies to improve performance and achieve objectives.