Given: Assume you are hired as a consultant to a firm that provides you the following cost data provided in the table and the equivalent figure. Table: Output (q) Marginal Cost (MC) Avg Variable Cost (AVC) Avg Fixed Cost (AFC) Avg Total Cost (ATC) 0 --- --- --- --- 1 $20 $20 $400 $420 2 $60 $40 $200 $240 3 $100 $60 $133 $193 4 $140 $80 $100 $180 5 $180 $100 $80 $180 6 $220 $120 $67 $187 7 $260 $140 $57 $197 8 $300 $160 $50 $210 9 $340 $180 $44 $224 10 $380 $200 $40 $240 Figure: Cost curves; data given in table. Question: Assuming the firm is perfectly competitive, which cost curve illustrates portions of the firm's supply curve