5. For an activity level of 8,000 units, a manufacturing company has variable product costs of $354,000 and fixed product costs of $267,000. Their variable period costs are $210,000 and fixed period costs are $178,000. What would the company's total variable costs for an activity level of 11,000 units? A $753,750 B $564,000 Fixeu Variabh 44.1 775,500 D $486,750 eee, 4 ,750