please do parts A through E, thanks

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[The following information applies to the questions displayed below. Diego Company manufactures one product that is sold for $78 per unit in two geographic regions-the East and West regions. The following information pertains to the company's first year of operations in which it produced 60,000 units and sold 57,000 units. The company sold 42,000 units in the East region and 15,000 units in the West region. It determined that $340,000 of its fixed seling and administrative expense is traceable to the West region, $290,000 is traceable to the East region, and the remaining $24,000 is a common fixed expense. The company will continue to incur the total amount of its fixed manufacturing overhead costs as long as it continues to produce any amount of its only product. Required: 1. What is the unit product cost under variable costing? 2. What is the unit product cost under absorption costing? 5. What is the company's total gross margin under absorption costing? 6. What is the company's net operating income (loss) under absorption costing? 7. What is the amount of the difference between the variable costing and absorption costing net operating incomes (losses)