Total cost (dollars per hour) 100 TC 80 10 ) TC = TFC + TVC TVC uesti Que 60 Que 40 Qu 20 TFC Qu 0 2 3 4 5 6 7 8 9 10 Output (gallons per hour) $20 Total fixed cost (dollars) $20 Wage rate (dollars per hour) 9 OTotal cost (dollars per hour) 100 80 TC TC = TFC + TVC TVC 60 40 20 TFC 9 10 0 2 3 5 6 8 Output (gallons per hour) $20 Total fixed cost (dollars) $12 Wage rate (dollars per hour) OThis question: 1 point(s) possible Submit quiz K Explore the cost curves and then answer the question. In the graph you've just explored, what happens to Sam's total cost curves when the wage rate rises from $12 to $20 per hour? Sam's TFC curve and her TVC curve O A. does not change; rotates upward O B. does not change; shifts upward by $8 O C. increases to $20; shifts upward by $8 O D. increases to $20; rotates upward