O'Brien Company manufactures and sells one product. The following information pertains to each of the company's first three years of operations: During its first year of operations, O'Brien produced 98,000 units and sold 71,000 units. During its second year of operations, it produced 77,000 units and sold 99,000 units. In its third year, O'Brien produced 83,000 units and sold 78,000 units. The selling price of the company's product is $72 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. Compute the unit product cost for Year 1, Year 2, and Year 3. Prepare an income statement for Year 1, Year 2, and Year 3