[The following information applies to the questions displayed below.] O'Brien Company manufactures and sells one product. The following information pertains to each of the company's first three years of operations: Variable costs per unit: Manufacturing: Direct materials Direct labor Variable manufacturing overhead Variable selling and administrative Fixed costs per year: Fixed manufacturing overhead Fixed selling and administrative expenses ta ta ta ta 28 15 4 1 $580,000 $ 130,000 During its first year of operations, O'Brien produced 93,000 units and sold 79,000 units. During its second year of operations, it produced 77,000 units and sold 86,000 units. In its third year, O'Brien produced 84,000 units and sold 79,000 units. The selling price of the company's product is $78 per unit. 2. Assume the company uses variable costing and a LIFO inventory flow assumption (LIFO means last-in first-out. In other words, it assumes that the newest units in inventory are sold first): a. Compute the unit product cost for Year 1, Year 2, and Year 3. b. Prepare an income statement for Year 1, Year 2, and Year 3. O'Brien Company Variable Costing Income Statement Year 1 Year 2 Year 3 Variable expenses: Total variable expenses Fixed expenses Total fixed expenses