Use the following table to answer the next question. Output ATC Plant 1 ATC Plant 2 ATC Plant 3 ATC Plant 4 1,500 $10 $15 $20 $30 2,000 8 12 17 25 2,500 9 10 15 20 3,000 12 8 13 18 3,500 15 6 11 16 4,000 18 10 9 14 4,500 20 12 7 12 5,000 24 15 11 10 5,500 29 19 13 8 6,000 35 25 15 9 Plant sizes get larger as you move from Plant 1 to Plant 4. In the long run, the firm should use Plant 3's size for what level of output? Multiple Choice 5,000 to 5,500 units 3,000 to 3,500 units 4,000 to 4,500 units less than 3,000 units