Docherty, Inc. reports the following information for the year ended December 31: Units sold Sales price Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead Variable selling and administrative costs Fixed selling and administrative costs The operating income calculated using variable costing and absorption costing amounted to $9800 and $11,000, respectively. There were no number of units produced during the year. 600units $120per unit $29per unit $8per unit $13per unit $25per unit $5per unit $14,500per year beginning inventories. Determine the total A) 648 units B) 600 units C) 48 units D) 10 units