Below Is Short-Run Cost Data for Four Different Plant Sizes

Multiple Choice

Below is short-run cost data for four different plant sizes.Plant 2 has exactly twice as many inputs as does Plant 1.Plant 3 has exactly three times as many inputs as does Plant 1 and Plant 4 has exactly four times as many inputs as does Plant 1.

-Refer to the information above to answer this question.What is economic capacity in Plant 2?

A) 20.
B) 30.
C) 40.
D) 50.