Referring to Table 4.2, Box E should be filled with Output Total Total Cost Marginal Cost Average Variable Average Total Cost Variable Cost Cost $0 $10 Box A Box G Box M $10 $20 Box B BOX H Box N 2 $15 $25 Box C Box I Box O 3 $17 $27 Box D Box J Box P $20 $30 BOX E Box K Box G $30 $40 Box F BOX L Box R Table 4.2