Plant sizes get larger as you move from ATC-1 to ATC-4. ATC-2 ATC-1 $ 10 15 ATC-3 $ 2e 17 ATC-4 $ 30 25 20 9 12 98 15 10 7 12 13 18 Output 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 5,500 6,000 15 6 11 16 18 10 9 14 20 12 7 12 24 15 11 10 29 19 13 8 35 25 15 9 Over what range of output are economies of scale experienced by this firm? Multiple Choice 2,000 to 4,000 1.500 to 3,000 1,500 to 3,500 2,000 to 3,500