Gene and Rory get together and start a mortgage brokerage business. They each contribute $$25,000$ of capital to the business. After the first year of operation, the total owners' equity is listed as $$60,000.$ Most likley, the additional $$10,000$ of owners' equity is $\_\_\_\_\_.$

Question $2$ options:

current liabilities

common stock

long$-$term liabilities

retained earnings