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 marginal fixed cost of a firm:

A) is a positive constant irrespective of output level.
B) declines as output is increased because a fixed numerator is divided by an ever-growing denominator.
C) generally increases as output is increased.
D) is equal to average variable cost and average total cost at their minimum points.
E) is always equal to zero and is therefore ignored by economists.