Which of the following is an example of an operating expenditure?

Monthly rent for office space is classified as an operating expenditure because it represents the regular and ongoing costs necessary to run a business. Operating expenditures, also known as operating expenses, are expenses incurred through normal business operations, such as rent, salaries, utilities, and office supplies. These costs are essential for maintaining the day-to-day functions of a business and are typically recorded on the income statement, affecting the overall profit for the period.

In contrast, the other options involve capital expenditures, which are long-term investments in assets that will provide benefits over multiple periods. The purchase of a new delivery truck, renovation costs for a facility, and buying new machinery all represent significant investments intended to enhance the company's operational capacity or efficiency, and these costs are capitalized on the balance sheet rather than expensed immediately. Thus, only the monthly rent aligns with the definition of operating expenditures.