The Below Figure Shows the Various Combinations of the Goods

The below figure shows the various combinations of the goods X and Y that yield different levels of utility.Figure 7.3

-The average total cost incurred by a firm is calculated by dividing:

A) the change in total cost by the change in the quantity of output.
B) total output by the number of people employed.
C) the change in total output by the change in the number of people employed.
D) total cost by total output.
E) total output by total cost.