Farris Corporation, which has only one product, has provided the following data concerning its most recent month of operations: Selling price $ 124 Units in beginning inventory Units produced Units sold Units in ending inventory 9,100 8,700 400 Variable costs per unit: Direct materials Direct labor Variable manufacturing overhead Variable selling and administrative expense Fixed costs: Fixed manufacturing overhead Fixed selling and administrative expense $ $ $ $ 21 63 9 13 $136,500 $ 9, 100 What is the net operating income (oss) for the month under variable costing? Multiple Choice $6,000 $26.2001 ST1000 O $17,000