The expense report relates to the duty of hiring and managing a staff, as it involves tracking the financial aspects of a representative's office. This entails managing budgets for salaries, supplies, and operational costs. Therefore, the correct answer is C. Hiring and managing a staff.
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The expense report is an example of the duty related to hiring and managing a staff, as it involves financial management of office resources. This duty ensures that funds are properly tracked and used efficiently. Other duties, while important, do not pertain to the specifics of managing expenses. ;