content area top Part 1 Which of the following statements describes average total cost? Question content area bottom Part 1 A. An increase in output may increase or decrease average total cost. B. Initially as output increases, average fixed cost and average variable cost increase, so average total cost increases and the ATC curve slopes upward. C. The shape of the ATC curve combines the shapes of the TFC and TVC curves. D. The ATC curve eventually slopes upward because average fixed cost eventually increases