Section C Production costs 11. Suppose there's a firm that manufactures umbrellas. The table on the following page displays some of its cost structure. (Show your work and calculations] Quantity of umbrellas TFC TVC TC 0 24 34 38 68 8 98 a. What is the total fixed cost of producing 2 umbrellas? 2marks b. What is the marginal cost of the sixth umbrella? 2marks c. Calculate the average fixed cost of the fifth unit. Show your work. 2marks d. Calculate the total variable cost and the average variable cost of producing 8 units. Show your work. 2 marks 12. Explain why the average total cost curve and the average variable cost curve move closer together as output expands. 2marks