If the long-run average cost of producing 50 units of Good X is $3.00 and the long-run average cost of producing 51 units of Good X is $3.25, the firm is Group of answer choices operating at the minimum efficient scale. experiencing economies of scale in the range of 50 to 51. experiencing diseconomies of scale in the range of 50 to 51. experiencing constant returns to scale in the range of 50 to 51