Problem: The XYZ Company is a profit-maximizing firm with a monopoly in the production of pennants. The firm sells its pennants for $10 each. We can conclude that the XYZ Company is producing a level of output at which:
Select one:
a. average total cost equals $10.
b. average total cost is greater than $10.
c. marginal revenue equals $10.
d. marginal cost equals marginal revenue.