the firm finds that its marginal revenue is less than its marginal cost. to maximize profit, this firm will

b. decrease production to maximize profit.

Explanation:

Economic theory holds that to maximize profits, one should produce at a level where Marginal cost equals Marginal revenue. At this point, resources are being utilized fully but anything past this point will result in MC > MR.  

This company is past that point of production which is why they are in their current predicament. To solve this, they should decrease production till they get to a point where Marginal Revenue = Marginal cost.

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