The first business transaction to be recorded considers the money flowing out for the company for the wages and salaries of its employees. Therefore, we will have Wages and Salaries on the left side as a cost, and Bank account on the right side as a cash-out for an amount equal to 50 000 €.

None of the others is correct

In the journal book, we will record Welfare institutions (19 000 €) and Tax payable (12 500 €) on the left side as a cost and employee payable on the right side as a debt (31 500€).

In the journal book, we will record Wages and Salaries on the left side as a cost and Employee Payable on the right side as a debt for an amount equal to 18 500 €.

We cannot record this business transactions until we have the details regarding the company's own contribution for its employees' welfare.