The table below contains average cost data for four different-sized plants1, 2, 3, and 4which are the only four sizes possible.

Output	Plant 1	Plant 2	Plant 3	Plant 4
90	$115	$135	$160	$180
140	105	115	140	160
190	115	100	115	130
240	130	120	95	120
290	160	140	120	90
340	190	160	145	130
390	225	185	175	160

a. What is the economic capacity output for each of the four plants? Plant 1: Plant 2: Plant 3: Plant 4: b. In what plant and at what output is minimum long-run average cost achieved? Output of in (Click to select) 1 2 3 4 . c. Which plant is the right size to produce an output of 190? (Click to select) Plant 1 Plant 2 Plant 3 Plant 4 d. Which plant is the right size to produce an output of 90?

(Click to select) Plant 1 Plant 2 Plant 3 Plant 4