Concept:Wages expense is the amount incurred for labour in the period, not just the amount actually paid.Use: Wages expense=Wages paid+Closing outstanding wages−Opening outstanding wages.Explanation:The business paid N15,000 for wages during the period.It still owes N2,000 at the end of the period, so this amount must be added to the expense for the period.No opening outstanding balance is shown in the given information, so nothing is subtracted.Therefore, N15,000+N2,000=N17,000.Answer:Option B: N17,000