Exhibit 21-3 ​

Exhibit 21-3
​

-The law of diminishing marginal returns states that as ever larger amounts of a variable input are combined with

A) fixed inputs, the marginal physical product of the variable input rises.
B) other variable inputs, the marginal physical product of the variable input declines.
C) fixed inputs, eventually the marginal physical product of the variable input declines.
D) other variable inputs, eventually the marginal physical product of the variable input declines.