Which of the following classifications includes obligations to be settled within a year?

The classification that includes obligations to be settled within a year is current liabilities. Current liabilities consist of debts or obligations that a company expects to pay off within the short term, typically within one year. Examples of current liabilities include accounts payable, short-term loans, and accrued expenses. This classification is essential for understanding a company's short-term financial health and liquidity since it reflects the amounts that a company must settle in the near future.

In contrast, current assets refer to resources a company expects to convert to cash or use up within a year, such as cash, accounts receivable, and inventory. Long-term assets and long-term liabilities pertain to obligations or resources that extend beyond one year, which is why they do not classify short-term obligations accurately.