Which of the following date lines is correct for a profit and loss account?

The correct date line for a profit and loss account is "for the year ended 31st December 2009." This is because the profit and loss account is a financial statement that shows the revenues, costs, and expenses of a business over a specific period, usually a year. The date line indicates the period for which the statement is being prepared, which is the year that ended on the 31st of December 2009. The other options are incorrect because they either do not specify a period or use incorrect terminology.