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Problem 1 ( 4 possible points- partial credit will be determined based on showing your work): Kubin Company's relevant range of production is 18,000 to 22,000 units. When it produces and sells 20,000 units, its average cost per unit are as follows: A) If 18,000 units are produced and sold, what is the variable cost per unit produced and sold? B) If 18,000 units are produced and sold, what is the total amount of variable cost related to the units produced and sod? C) If 18,000 units are produced, what are the fixed manufacturing cost per unit produced? D) If 18,000 units are produced, what is the total amount of fixed manufacturing overhead incurred to support this level of production? E) What is the total manufacturing cost (product cost) of producing 18,000 units