What type of accounts are included in "liabilities"?

Liabilities are defined as obligations that a company owes to external parties, which typically arise from past transactions and are expected to be settled in the future through the transfer of assets or services. Accounts payable refers to amounts owed to suppliers for goods or services purchased on credit, while dividends payable represents the amount of dividends that have been declared but not yet paid to shareholders. Both of these accounts clearly fall within the definition of liabilities, as they indicate amounts the company is obligated to pay.

On the other hand, the remaining options do not fit the definition of liabilities. Assets and equity accounts encompass the resources owned by the business and the ownership interest of the shareholders, respectively. Profit-sharing accounts relate to the allocation of profits to employees or partners and are not classified as liabilities. Additionally, operating revenue accounts pertain to income generated from normal business operations, which do not represent obligations. Thus, accounts payable and dividends payable are indeed types of liabilities, making the first choice the correct answer.