9. Refer to the short-run data. The profit-maximizing output for this firm is: a. above 440 units. b. 440 units. c. 320 units. d. 100 units.

9. Refer to the short-run data. The profit-maximizing output for this firm is:
a. above 440 units.
b. 440 units.
c. 320 units.
d. 100 units.

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