Table 13-14 Quantity Average Average of Fixed Variable Total Fixed Variable Average Total Output Cost Cost Cost Cost Cost Cost Marginal Cost 1 $23 $33 2 $38 3 $60 4 $54 5 $80 6 $88 $113 8 $155 Refer to Table 13-14. What is the average total cost of producing 6 units of output? OA. $19.67 OB. $20.00 OC. $16.33 OD. $21.86 Reset Selection